diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 9802dcaa..a33dfc3d 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -110,7 +110,7 @@ jobs:
         # Owns the rev derivation, the rev-keyed tools cache, the
         # install, and the pins gate; conformance-ct::_ct-tools
         # recognizes the stamped install and does not repeat it.
-        uses: polymorph-components/polymorph-test/actions/setup@9f9e4d544b90e3321ac0572be92c57339b963d34
+        uses: polymorph-components/polymorph-test/actions/setup@3631d4a1eedfb40d0ad24c68ac5b22ec8ed8d935
 
       - name: Install Node 24
         # Exact-pinned, like every engine here (Deno, the Playwright
@@ -487,7 +487,7 @@ jobs:
           save-if: false
 
       - name: Install the component-test tools at the pinned revision
-        uses: polymorph-components/polymorph-test/actions/setup@9f9e4d544b90e3321ac0572be92c57339b963d34
+        uses: polymorph-components/polymorph-test/actions/setup@3631d4a1eedfb40d0ad24c68ac5b22ec8ed8d935
 
       - name: Download the ubuntu conformance results
         uses: actions/download-artifact@v4
@@ -520,7 +520,7 @@ jobs:
       # input polices the `uses:` refs against the pin.
       - name: Publish the conformance matrix
         if: always() && hashFiles('conformance/driver-ct/results/*.jsonl') != ''
-        uses: polymorph-components/polymorph-test/actions/aggregate@9f9e4d544b90e3321ac0572be92c57339b963d34
+        uses: polymorph-components/polymorph-test/actions/aggregate@3631d4a1eedfb40d0ad24c68ac5b22ec8ed8d935
         with:
           lock: conformance/guest-ct/tests.lock
           manifest: conformance/driver-ct/targets.toml
@@ -539,7 +539,7 @@ jobs:
 
       - name: Publish the signing conformance matrix
         if: always() && hashFiles('conformance/driver-ct/results/*.jsonl') != ''
-        uses: polymorph-components/polymorph-test/actions/aggregate@9f9e4d544b90e3321ac0572be92c57339b963d34
+        uses: polymorph-components/polymorph-test/actions/aggregate@3631d4a1eedfb40d0ad24c68ac5b22ec8ed8d935
         with:
           lock: conformance/signing-guest-ct/tests.lock
           manifest: conformance/driver-ct/targets-signing.toml
diff --git a/Cargo.lock b/Cargo.lock
index 9c8b90ec..8257bc3e 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -233,9 +233,9 @@ checksum = "fc652a48c352aef3ea3aed32080501cf3ef6ed5da78602a020c991775b0aff04"
 
 [[package]]
 name = "cap-fs-ext"
-version = "4.0.2"
+version = "4.0.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "d78e5a3368ae89b7cb68186411452b4b9fac8b41be9c19bf3f47c2d2c8e36e6b"
+checksum = "56ff379b70af8e08307a8f65e7040c7301cb4a572538ade16b4984f0da77847f"
 dependencies = [
  "cap-primitives",
  "cap-std",
@@ -245,9 +245,9 @@ dependencies = [
 
 [[package]]
 name = "cap-primitives"
-version = "4.0.2"
+version = "4.0.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "cdadbd7c002d3a484b35243669abdae85a0ebaded5a61117169dc3400f9a7ff0"
+checksum = "8b5f74729fd2f44701d1a8eb47e906cdb3ccd9ec0f02baad85a744b791940b18"
 dependencies = [
  "ambient-authority",
  "fs-set-times",
@@ -263,9 +263,9 @@ dependencies = [
 
 [[package]]
 name = "cap-std"
-version = "4.0.2"
+version = "4.0.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "7281235d6e96d3544ca18bba9049be92f4190f8d923e3caef1b5f66cfa752608"
+checksum = "c1ec78e242cfa2cfe276807ac2ecc00315a6c97786977414bcd1c3963b6c91b8"
 dependencies = [
  "cap-primitives",
  "io-extras",
@@ -342,7 +342,7 @@ dependencies = [
 [[package]]
 name = "component-test-core"
 version = "0.1.1"
-source = "git+https://github.com/polymorph-components/polymorph-test?rev=9f9e4d544b90e3321ac0572be92c57339b963d34#9f9e4d544b90e3321ac0572be92c57339b963d34"
+source = "git+https://github.com/polymorph-components/polymorph-test?rev=3631d4a1eedfb40d0ad24c68ac5b22ec8ed8d935#3631d4a1eedfb40d0ad24c68ac5b22ec8ed8d935"
 dependencies = [
  "arcstr",
  "serde",
@@ -351,7 +351,7 @@ dependencies = [
 [[package]]
 name = "component-test-formats"
 version = "0.1.1"
-source = "git+https://github.com/polymorph-components/polymorph-test?rev=9f9e4d544b90e3321ac0572be92c57339b963d34#9f9e4d544b90e3321ac0572be92c57339b963d34"
+source = "git+https://github.com/polymorph-components/polymorph-test?rev=3631d4a1eedfb40d0ad24c68ac5b22ec8ed8d935#3631d4a1eedfb40d0ad24c68ac5b22ec8ed8d935"
 dependencies = [
  "anyhow",
  "component-test-core",
@@ -366,7 +366,7 @@ dependencies = [
 [[package]]
 name = "component-test-results"
 version = "0.1.1"
-source = "git+https://github.com/polymorph-components/polymorph-test?rev=9f9e4d544b90e3321ac0572be92c57339b963d34#9f9e4d544b90e3321ac0572be92c57339b963d34"
+source = "git+https://github.com/polymorph-components/polymorph-test?rev=3631d4a1eedfb40d0ad24c68ac5b22ec8ed8d935#3631d4a1eedfb40d0ad24c68ac5b22ec8ed8d935"
 dependencies = [
  "anyhow",
  "component-test-core",
@@ -377,7 +377,7 @@ dependencies = [
 [[package]]
 name = "component-test-runner"
 version = "0.1.1"
-source = "git+https://github.com/polymorph-components/polymorph-test?rev=9f9e4d544b90e3321ac0572be92c57339b963d34#9f9e4d544b90e3321ac0572be92c57339b963d34"
+source = "git+https://github.com/polymorph-components/polymorph-test?rev=3631d4a1eedfb40d0ad24c68ac5b22ec8ed8d935#3631d4a1eedfb40d0ad24c68ac5b22ec8ed8d935"
 dependencies = [
  "anyhow",
  "component-test-core",
@@ -394,19 +394,19 @@ dependencies = [
 [[package]]
 name = "component-test-sdk"
 version = "0.1.1"
-source = "git+https://github.com/polymorph-components/polymorph-test?rev=9f9e4d544b90e3321ac0572be92c57339b963d34#9f9e4d544b90e3321ac0572be92c57339b963d34"
+source = "git+https://github.com/polymorph-components/polymorph-test?rev=3631d4a1eedfb40d0ad24c68ac5b22ec8ed8d935#3631d4a1eedfb40d0ad24c68ac5b22ec8ed8d935"
 dependencies = [
  "component-test-core",
  "component-test-sdk-macro",
  "foldhash 0.2.0",
  "indexmap",
- "wit-bindgen 0.60.0",
+ "wit-bindgen 0.61.1",
 ]
 
 [[package]]
 name = "component-test-sdk-macro"
 version = "0.1.1"
-source = "git+https://github.com/polymorph-components/polymorph-test?rev=9f9e4d544b90e3321ac0572be92c57339b963d34#9f9e4d544b90e3321ac0572be92c57339b963d34"
+source = "git+https://github.com/polymorph-components/polymorph-test?rev=3631d4a1eedfb40d0ad24c68ac5b22ec8ed8d935#3631d4a1eedfb40d0ad24c68ac5b22ec8ed8d935"
 dependencies = [
  "component-test-core",
  "proc-macro2",
@@ -504,27 +504,27 @@ dependencies = [
 
 [[package]]
 name = "cranelift-assembler-x64"
-version = "0.134.2"
+version = "0.135.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "8f0435c6939d6ef218bf0a3063094f2cc5c46f7a44a88f81cf932da8d3922ff8"
+checksum = "9903e767cc0a95a59950de099a6b1d61e1476f774be1cdfa06d7ccdc9bfae56f"
 dependencies = [
  "cranelift-assembler-x64-meta",
 ]
 
 [[package]]
 name = "cranelift-assembler-x64-meta"
-version = "0.134.2"
+version = "0.135.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "aca52511cc21a2c9c927aef493d11c8087bdc5483249a3d93aee41e81b8bd4d1"
+checksum = "e777252ea3ec9daffa71408fbfe0793ab0a7b7bc3b2cf0f417dd0fa33964b8ef"
 dependencies = [
  "cranelift-srcgen",
 ]
 
 [[package]]
 name = "cranelift-bforest"
-version = "0.134.2"
+version = "0.135.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "6867e99f068454b0c81c50b807af88aa80aaf383105e2be26675d81fc4278466"
+checksum = "7828208a36e6627481cea61bd24c6234e31411d5c58b48e80ca094a1d593b944"
 dependencies = [
  "cranelift-entity",
  "wasmtime-internal-core",
@@ -532,9 +532,9 @@ dependencies = [
 
 [[package]]
 name = "cranelift-bitset"
-version = "0.134.2"
+version = "0.135.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "3cf66017aed971344230199ad35ca01c955cf824a0e65fed5240452d2a302445"
+checksum = "a58c8447cc59ef98c49096679f81392ad0acec2224cea2bef52011f5169f9d02"
 dependencies = [
  "serde",
  "serde_derive",
@@ -543,9 +543,9 @@ dependencies = [
 
 [[package]]
 name = "cranelift-codegen"
-version = "0.134.2"
+version = "0.135.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "933b2e5237665bf9367a34ad2100eed70c94b2796586cb09d9ba11693e061667"
+checksum = "ce520e899df1de583e7b564eafd66760fbc147d72894d2278ddac57a1489fcc0"
 dependencies = [
  "bumpalo",
  "cranelift-assembler-x64",
@@ -574,9 +574,9 @@ dependencies = [
 
 [[package]]
 name = "cranelift-codegen-meta"
-version = "0.134.2"
+version = "0.135.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "322e3ca0603683cc17f0c808559c0fb85ad52b0f20ace0478bdd4ba2fa1e9678"
+checksum = "8d8ab23e63d78ea6bbda18ae1ed9c958bc1cb88d90fb5e95f5ba62e9c019474b"
 dependencies = [
  "cranelift-assembler-x64-meta",
  "cranelift-codegen-shared",
@@ -587,24 +587,24 @@ dependencies = [
 
 [[package]]
 name = "cranelift-codegen-shared"
-version = "0.134.2"
+version = "0.135.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "287ab88211d049178dc8dda243e2db176919d8b29db605c0efc7c6d76ebea0f7"
+checksum = "24319a996b1ef40ebf8af69b39c868c790b35a42cfe38edacfd8c9deb75ea712"
 
 [[package]]
 name = "cranelift-control"
-version = "0.134.2"
+version = "0.135.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "c11438f9becf9a1e1e061bf76a33241b941a07ed01a489e9dad5fa79dc3624e9"
+checksum = "cf9856d68cc2cefb83229cb2c55b620dd38427555c2fe87d73f8a4421616f628"
 dependencies = [
  "arbitrary",
 ]
 
 [[package]]
 name = "cranelift-entity"
-version = "0.134.2"
+version = "0.135.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "584ecabe1462593a9cba9efbf9022e0987421ddb548989b455ab8bdd444b743c"
+checksum = "e0ec225d6b79c5d61358cb5ea081a1384ec541dbf8c1a8c618d187875af326ad"
 dependencies = [
  "cranelift-bitset",
  "serde",
@@ -614,9 +614,9 @@ dependencies = [
 
 [[package]]
 name = "cranelift-frontend"
-version = "0.134.2"
+version = "0.135.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "34249873145213a12106d5fd8a98a9dc9e90e16525e2337b2907874d1e7e9ee7"
+checksum = "7d3a96a09bd9bd3cf6df2de2ea15d7418f493e946a8eaa1acfe39297a67ed3f3"
 dependencies = [
  "cranelift-codegen",
  "hashbrown 0.17.1",
@@ -627,15 +627,15 @@ dependencies = [
 
 [[package]]
 name = "cranelift-isle"
-version = "0.134.2"
+version = "0.135.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "b6f1c1dc4d6b4bc4f0be12b08cee0e59f7610287827aa62590f8e9ec6f45dff4"
+checksum = "bd28f593c36afbdc9aa17305c0bb66c39ce0530e1caffcf389fbec053950083e"
 
 [[package]]
 name = "cranelift-native"
-version = "0.134.2"
+version = "0.135.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "31d9e4f6d9a3777b1ffa818000b4a6d7afd1b8787af71a9c58d94baef9076ced"
+checksum = "2987ca47affc261aa31ac643fb80dd7f8274cebf878003ba9f50cd6ff2c1055f"
 dependencies = [
  "cranelift-codegen",
  "libc",
@@ -644,9 +644,9 @@ dependencies = [
 
 [[package]]
 name = "cranelift-srcgen"
-version = "0.134.2"
+version = "0.135.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "4155f8a1afdef96a0272c67804926eee4ef35f9708ab22ad6878d4c9543df596"
+checksum = "b7431dd8c9def94aca43b27915dee0d42103d9b13922cfb044febcd975547d68"
 
 [[package]]
 name = "crc32fast"
@@ -2001,9 +2001,9 @@ dependencies = [
 
 [[package]]
 name = "pulley-interpreter"
-version = "47.0.2"
+version = "48.0.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "f6064e52588328c1275d690baad99f8d4b3fdd870736966f1a63cfcbb20560b6"
+checksum = "f755d75e0809a4738a3e4880eeeb852fadbe1de5a437505b84f09c381657012a"
 dependencies = [
  "cranelift-bitset",
  "log",
@@ -2013,9 +2013,9 @@ dependencies = [
 
 [[package]]
 name = "pulley-macros"
-version = "47.0.2"
+version = "48.0.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "7e832980317bfc7f8c8538ffc9c69b82912f3e33ec70f7c855d521654c70fa62"
+checksum = "c7e69fa1c4a555946f82e7894a7df88b0e9ee03b4266829b4811467c616ce51d"
 dependencies = [
  "proc-macro2",
  "quote",
@@ -2839,9 +2839,9 @@ dependencies = [
 
 [[package]]
 name = "wasm-compose"
-version = "0.252.0"
+version = "0.254.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "d59b710751a35d54732a63851cdfacbfb2266b7160ce174faf269d3f4e84e31b"
+checksum = "8fd717357bff09b5f1ea49aea8ed1cd149b0c521823a1cc70bc2ac16b90b651a"
 dependencies = [
  "anyhow",
  "heck",
@@ -2849,8 +2849,8 @@ dependencies = [
  "log",
  "petgraph",
  "smallvec",
- "wasm-encoder 0.252.0",
- "wasmparser 0.252.0",
+ "wasm-encoder 0.254.0",
+ "wasmparser 0.254.0",
  "wat",
 ]
 
@@ -2866,32 +2866,32 @@ dependencies = [
 
 [[package]]
 name = "wasm-encoder"
-version = "0.252.0"
+version = "0.253.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "8185ae345fa5687c054626ff9a50e7089797a343d9904d1dc9820eb4c4d3196f"
+checksum = "59972d6cd272259de647b7c1f1912e45e289c75ffd4be04e10695507cd7e1b59"
 dependencies = [
  "leb128fmt",
- "wasmparser 0.252.0",
+ "wasmparser 0.253.0",
 ]
 
 [[package]]
 name = "wasm-encoder"
-version = "0.253.0"
+version = "0.254.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "59972d6cd272259de647b7c1f1912e45e289c75ffd4be04e10695507cd7e1b59"
+checksum = "09480d646178e5fdd12bb06e812d0af9a3a191dbc9cd697fdc86687beade7393"
 dependencies = [
  "leb128fmt",
- "wasmparser 0.253.0",
+ "wasmparser 0.254.0",
 ]
 
 [[package]]
 name = "wasm-encoder"
-version = "0.254.0"
+version = "0.258.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "09480d646178e5fdd12bb06e812d0af9a3a191dbc9cd697fdc86687beade7393"
+checksum = "e974fe6821a8cf64575d51ea2194e2c8f77e7b66e9afe7419ce8a97f9ee0d251"
 dependencies = [
  "leb128fmt",
- "wasmparser 0.254.0",
+ "wasmparser 0.258.0",
 ]
 
 [[package]]
@@ -2930,16 +2930,28 @@ dependencies = [
  "wasmparser 0.254.0",
 ]
 
+[[package]]
+name = "wasm-metadata"
+version = "0.258.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "18a11585adb92fe9b55ad1d760e8d8fb5d87e0d2e303cb8eed57f078d54293a2"
+dependencies = [
+ "anyhow",
+ "indexmap",
+ "wasm-encoder 0.258.0",
+ "wasmparser 0.258.0",
+]
+
 [[package]]
 name = "wasm-wave"
-version = "0.252.0"
+version = "0.254.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "054d19e2b53e3bf158deac6e8cc003d9eaf3ec7ecaef579988ef7b5c666f9546"
+checksum = "e112fc0db85e7edf9258a9a0fa07566540c19a6a2af3fbf45a4d45d886bfd7df"
 dependencies = [
  "anyhow",
  "logos",
  "thiserror 2.0.19",
- "wit-parser 0.252.0",
+ "wit-parser 0.254.0",
 ]
 
 [[package]]
@@ -2969,34 +2981,34 @@ dependencies = [
 
 [[package]]
 name = "wasmparser"
-version = "0.252.0"
+version = "0.253.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "d3eb099dcadcde5be9eef55e3a337128efd4e44b4c93122487e4d2e4e1c6627c"
+checksum = "19db11f87d2486580e1e8b6f494c54df7e0566b87d0b599db843c24019667339"
 dependencies = [
  "bitflags",
  "hashbrown 0.17.1",
  "indexmap",
  "semver",
- "serde",
 ]
 
 [[package]]
 name = "wasmparser"
-version = "0.253.0"
+version = "0.254.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "19db11f87d2486580e1e8b6f494c54df7e0566b87d0b599db843c24019667339"
+checksum = "d5769a29f799fbab136aaf65b4fe5384cd7d93fe6fc9ba0dcb6c8382a1f16e27"
 dependencies = [
  "bitflags",
  "hashbrown 0.17.1",
  "indexmap",
  "semver",
+ "serde",
 ]
 
 [[package]]
 name = "wasmparser"
-version = "0.254.0"
+version = "0.258.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "d5769a29f799fbab136aaf65b4fe5384cd7d93fe6fc9ba0dcb6c8382a1f16e27"
+checksum = "d9a61719f93a87b16d325921e251800c4833f8fab50fa21c7de73aed50086313"
 dependencies = [
  "bitflags",
  "hashbrown 0.17.1",
@@ -3006,20 +3018,20 @@ dependencies = [
 
 [[package]]
 name = "wasmprinter"
-version = "0.252.0"
+version = "0.254.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "7142797de29b35ab8dbf15c00f55fda75d409da4c423a8ab8bd6b667a785824b"
+checksum = "64e3ba11e024f504698f87b629b2b66c22a1231758de7607754963f7d198be39"
 dependencies = [
  "anyhow",
  "termcolor",
- "wasmparser 0.252.0",
+ "wasmparser 0.254.0",
 ]
 
 [[package]]
 name = "wasmtime"
-version = "47.0.2"
+version = "48.0.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "06d9f263ccb212017dae1d109b9997f218a7675db1e9a7bedf07ae1643322bf3"
+checksum = "1bd39f78fe9bc82cee4025ec9d52118269e9a1498016cc60119b14f2e1d86a8d"
 dependencies = [
  "addr2line",
  "async-trait",
@@ -3027,7 +3039,6 @@ dependencies = [
  "bumpalo",
  "bytes",
  "cc",
- "cfg-if",
  "encoding_rs",
  "futures",
  "fxprof-processed-profile",
@@ -3051,9 +3062,9 @@ dependencies = [
  "target-lexicon",
  "tempfile",
  "wasm-compose",
- "wasm-encoder 0.252.0",
+ "wasm-encoder 0.254.0",
  "wasm-wave",
- "wasmparser 0.252.0",
+ "wasmparser 0.254.0",
  "wasmtime-environ",
  "wasmtime-internal-cache",
  "wasmtime-internal-component-macro",
@@ -3067,7 +3078,7 @@ dependencies = [
  "wasmtime-internal-versioned-export-macros",
  "wat",
  "windows-sys 0.61.2",
- "wit-parser 0.252.0",
+ "wit-parser 0.254.0",
 ]
 
 [[package]]
@@ -3082,9 +3093,9 @@ dependencies = [
 
 [[package]]
 name = "wasmtime-environ"
-version = "47.0.2"
+version = "48.0.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "9915e3d90c36a16e0fec8be746ee87e21cf0d4a017ecf09c49b7d1cc6f31b2b6"
+checksum = "00c1070d95484d048994ec109cd42c4932ac07e6ee3cc1886fb90c7a18ec29da"
 dependencies = [
  "anyhow",
  "cpp_demangle",
@@ -3104,8 +3115,8 @@ dependencies = [
  "sha2",
  "smallvec",
  "target-lexicon",
- "wasm-encoder 0.252.0",
- "wasmparser 0.252.0",
+ "wasm-encoder 0.254.0",
+ "wasmparser 0.254.0",
  "wasmprinter",
  "wasmtime-internal-component-util",
  "wasmtime-internal-core",
@@ -3113,9 +3124,9 @@ dependencies = [
 
 [[package]]
 name = "wasmtime-internal-cache"
-version = "47.0.2"
+version = "48.0.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "6b7c25436e1602aad2de80bfb3f586dcdfb6fe426d5b17cba37fabf9a1714d32"
+checksum = "9d447fd40f3e149cda8c0cd808660a1d1de438f3ff28627abb9bcda90dfb4895"
 dependencies = [
  "base64",
  "directories-next",
@@ -3133,9 +3144,9 @@ dependencies = [
 
 [[package]]
 name = "wasmtime-internal-component-macro"
-version = "47.0.2"
+version = "48.0.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "b627ea698db36fb9110aa77868467f1d23791a76a88a433cb6a43e1242073b77"
+checksum = "f3d2b2f9f89a65bb2277d82fbdd49263d27d8233bc717d750c4b13a23d57721c"
 dependencies = [
  "anyhow",
  "proc-macro2",
@@ -3143,20 +3154,20 @@ dependencies = [
  "syn 2.0.119",
  "wasmtime-internal-component-util",
  "wasmtime-internal-wit-bindgen",
- "wit-parser 0.252.0",
+ "wit-parser 0.254.0",
 ]
 
 [[package]]
 name = "wasmtime-internal-component-util"
-version = "47.0.2"
+version = "48.0.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "f45bf943cff1d2f1976bac6a241ca4ecaf29a6efd5f1ad89e7722439fa5c392f"
+checksum = "2c0fe8292115fda08875f29064ae9f7f0b2c1ffbb323146eae538ae34b8a613f"
 
 [[package]]
 name = "wasmtime-internal-core"
-version = "47.0.2"
+version = "48.0.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "ea33e1f9685be82f90223bebcf2ffefb6b596ea3d82a3c42384527b9c6f5b447"
+checksum = "821385794cf44baf2967fd2515368429ed2bff9b9b256f62d09a0f1301474fd8"
 dependencies = [
  "anyhow",
  "hashbrown 0.17.1",
@@ -3166,11 +3177,10 @@ dependencies = [
 
 [[package]]
 name = "wasmtime-internal-cranelift"
-version = "47.0.2"
+version = "48.0.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "8b1ce104719932a48dbdfec0cc292c96494b0bfe764946e45fbfd3340e3a68f9"
+checksum = "0238b4a52773457ad1b8a1a26be90486e0ca0108cf46b9be16cc1d8d8cabdfa1"
 dependencies = [
- "cfg-if",
  "cranelift-codegen",
  "cranelift-control",
  "cranelift-entity",
@@ -3184,7 +3194,7 @@ dependencies = [
  "smallvec",
  "target-lexicon",
  "thiserror 2.0.19",
- "wasmparser 0.252.0",
+ "wasmparser 0.254.0",
  "wasmtime-environ",
  "wasmtime-internal-core",
  "wasmtime-internal-unwinder",
@@ -3193,12 +3203,11 @@ dependencies = [
 
 [[package]]
 name = "wasmtime-internal-fiber"
-version = "47.0.2"
+version = "48.0.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "976e4b71b9c0da8a9a7bb8d5fa0abedc4da879b397111fd91ece73be524fe621"
+checksum = "596f1d85e06cbf9c9add9c78ea135171c5753264ffe94a83dcc082a1ff49fc9b"
 dependencies = [
  "cc",
- "cfg-if",
  "libc",
  "rustix",
  "wasmtime-environ",
@@ -3208,9 +3217,9 @@ dependencies = [
 
 [[package]]
 name = "wasmtime-internal-jit-debug"
-version = "47.0.2"
+version = "48.0.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "f1f60ecba3497cfc26284903c2e79023fd5ea991b95b0e8dafe994fd9fca4c4e"
+checksum = "365faed74827bb0116785bab5872372df1baaec9ec0003c83bc99ccdc595f689"
 dependencies = [
  "cc",
  "object",
@@ -3220,11 +3229,10 @@ dependencies = [
 
 [[package]]
 name = "wasmtime-internal-jit-icache-coherence"
-version = "47.0.2"
+version = "48.0.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "fae6decb025ae6d12f3391b36deb62a6838d45b18864f796d84bced722ceac0d"
+checksum = "3cce25afd9e7ac4957292a5c6a219951dd0f140b8417e7378a97f50b67c3b96f"
 dependencies = [
- "cfg-if",
  "libc",
  "wasmtime-internal-core",
  "windows-sys 0.61.2",
@@ -3232,11 +3240,10 @@ dependencies = [
 
 [[package]]
 name = "wasmtime-internal-unwinder"
-version = "47.0.2"
+version = "48.0.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "0982122d9470d3d72ed7aa9ed91e69538ae44c1494cd22d78fec7846b248a940"
+checksum = "a1fdea09d51e39c774984ca68a7d7486767e5b2935f5e686fa654aabcfc3c42d"
 dependencies = [
- "cfg-if",
  "cranelift-codegen",
  "log",
  "object",
@@ -3245,9 +3252,9 @@ dependencies = [
 
 [[package]]
 name = "wasmtime-internal-versioned-export-macros"
-version = "47.0.2"
+version = "48.0.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "363cf88a80e6ed13311d0d34d9bcd02a2e07d98113b994ff41ed386a206f498e"
+checksum = "97e48a5f514c38c2f74249724cb3501e45548d3311ca9e3881694859fd6ba116"
 dependencies = [
  "proc-macro2",
  "quote",
@@ -3256,31 +3263,30 @@ dependencies = [
 
 [[package]]
 name = "wasmtime-internal-wit-bindgen"
-version = "47.0.2"
+version = "48.0.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "87ff41bb1656cbeb7befc42b8a7078b30a5f8393a0c8bca36a6cec94360c1a16"
+checksum = "07429ab53576255be2d298e04b2e1f381e39645465adbaebd69314b5430165c0"
 dependencies = [
  "anyhow",
  "bitflags",
  "heck",
  "indexmap",
- "wit-parser 0.252.0",
+ "wit-component 0.254.0",
+ "wit-parser 0.254.0",
 ]
 
 [[package]]
 name = "wasmtime-wasi"
-version = "47.0.2"
+version = "48.0.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "ed1750b8e5e5d5b1ee3c0eb602d2c49d6a37a36e9996eaf0708b48ac92b62b06"
+checksum = "85dd81ee95792682ea5b279c9ed352f6b8a2cba084c2f8abdb225e6933323fed"
 dependencies = [
  "async-trait",
  "bitflags",
  "bytes",
  "cap-fs-ext",
- "cap-std",
- "cfg-if",
+ "cap-primitives",
  "futures",
- "io-lifetimes 3.0.1",
  "rand 0.10.2",
  "rustix",
  "thiserror 2.0.19",
@@ -3295,9 +3301,9 @@ dependencies = [
 
 [[package]]
 name = "wasmtime-wasi-io"
-version = "47.0.2"
+version = "48.0.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "54777d3afeaf3f32cc444df661d9cb4fd57067971e183c2b1f5251f33b939e68"
+checksum = "6a557bc8a7232cd079f6b423a9bb385f3ff9148824f3c26c07a028b499fab2bf"
 dependencies = [
  "async-trait",
  "bytes",
@@ -3308,14 +3314,14 @@ dependencies = [
 
 [[package]]
 name = "wasmtime-wizer"
-version = "47.0.2"
+version = "48.0.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "c31523af61f453d106d220a8579cb983a335e3c4cdd6b55bf07f330c990bb9b7"
+checksum = "5b8120e6523a27278e0848815641f70db827cd403f25cb0a4bca75560e909397"
 dependencies = [
  "log",
  "rayon",
- "wasm-encoder 0.252.0",
- "wasmparser 0.252.0",
+ "wasm-encoder 0.254.0",
+ "wasmparser 0.254.0",
  "wasmtime",
 ]
 
@@ -3352,9 +3358,9 @@ dependencies = [
 
 [[package]]
 name = "wiggle"
-version = "47.0.2"
+version = "48.0.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "3a23c2dc694dfafb35beb542e172d7c256488912cd84902828f8661723ad0eb7"
+checksum = "b871ea219ad85c1e59ee7d013563814e86d2e6aa094d3bc66b7675ec4ca58bb7"
 dependencies = [
  "bitflags",
  "thiserror 2.0.19",
@@ -3366,9 +3372,9 @@ dependencies = [
 
 [[package]]
 name = "wiggle-generate"
-version = "47.0.2"
+version = "48.0.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "f2fe48e5e455e827339d8e65de602cc7839d241bd7063be1fc235e35581788ad"
+checksum = "ed981675756e748a4725286a4059c9be006749a8db4120d54e2021d0f167bac3"
 dependencies = [
  "heck",
  "proc-macro2",
@@ -3380,9 +3386,9 @@ dependencies = [
 
 [[package]]
 name = "wiggle-macro"
-version = "47.0.2"
+version = "48.0.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "bb520c20bed78e5a311d4c9ad883ac3b6d070617d07a19fbe5dc0b408c501b4b"
+checksum = "7f3927729af874585c58b85710128e40d459a7064bb9aea9b0b420fb5eafd555"
 dependencies = [
  "proc-macro2",
  "quote",
@@ -3637,6 +3643,16 @@ dependencies = [
  "wit-bindgen-rust-macro 0.60.0",
 ]
 
+[[package]]
+name = "wit-bindgen"
+version = "0.61.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "e473fd0095479f9689ac7d2a52c427cc96bb2b973ace50238dfcc1ab1cd52d93"
+dependencies = [
+ "bitflags",
+ "wit-bindgen-rust-macro 0.61.1",
+]
+
 [[package]]
 name = "wit-bindgen-core"
 version = "0.57.1"
@@ -3670,6 +3686,17 @@ dependencies = [
  "wit-parser 0.254.0",
 ]
 
+[[package]]
+name = "wit-bindgen-core"
+version = "0.61.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "87445680dfe6d6b5369e884bd63c03a3335268e855365b2fc3f7bcdce96a630e"
+dependencies = [
+ "anyhow",
+ "heck",
+ "wit-parser 0.258.0",
+]
+
 [[package]]
 name = "wit-bindgen-rust"
 version = "0.57.1"
@@ -3718,6 +3745,22 @@ dependencies = [
  "wit-component 0.254.0",
 ]
 
+[[package]]
+name = "wit-bindgen-rust"
+version = "0.61.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "72f2fe494de0d898216caf0fd0ae76af75753fcb3ff4f465b46131537cf24cf8"
+dependencies = [
+ "anyhow",
+ "heck",
+ "indexmap",
+ "prettyplease",
+ "syn 2.0.119",
+ "wasm-metadata 0.258.0",
+ "wit-bindgen-core 0.61.1",
+ "wit-component 0.258.0",
+]
+
 [[package]]
 name = "wit-bindgen-rust-macro"
 version = "0.57.1"
@@ -3766,6 +3809,22 @@ dependencies = [
  "wit-bindgen-rust 0.60.0",
 ]
 
+[[package]]
+name = "wit-bindgen-rust-macro"
+version = "0.61.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "59283a01aec94f60f92ada22ffe182a5cea8acfce43be3be688de8d52df55312"
+dependencies = [
+ "anyhow",
+ "macro-string",
+ "prettyplease",
+ "proc-macro2",
+ "quote",
+ "syn 2.0.119",
+ "wit-bindgen-core 0.61.1",
+ "wit-bindgen-rust 0.61.1",
+]
+
 [[package]]
 name = "wit-component"
 version = "0.247.0"
@@ -3823,6 +3882,25 @@ dependencies = [
  "wit-parser 0.254.0",
 ]
 
+[[package]]
+name = "wit-component"
+version = "0.258.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "481b5c47b2ecce0389b5e08a05557d6a190c9cd761773b8880a8017ee04dc7ef"
+dependencies = [
+ "anyhow",
+ "bitflags",
+ "indexmap",
+ "log",
+ "serde",
+ "serde_derive",
+ "serde_json",
+ "wasm-encoder 0.258.0",
+ "wasm-metadata 0.258.0",
+ "wasmparser 0.258.0",
+ "wit-parser 0.258.0",
+]
+
 [[package]]
 name = "wit-parser"
 version = "0.247.0"
@@ -3844,9 +3922,9 @@ dependencies = [
 
 [[package]]
 name = "wit-parser"
-version = "0.252.0"
+version = "0.253.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "4266bea110371c620ccf3201c5023676046bc4556e5c7cfb5d500bda5ebc162d"
+checksum = "4d997b8e5920fcbeec742b58e583325d6419a6aca617ae8075c406a61c65ba8a"
 dependencies = [
  "anyhow",
  "hashbrown 0.17.1",
@@ -3858,14 +3936,14 @@ dependencies = [
  "serde_derive",
  "serde_json",
  "unicode-ident",
- "wasmparser 0.252.0",
+ "wasmparser 0.253.0",
 ]
 
 [[package]]
 name = "wit-parser"
-version = "0.253.0"
+version = "0.254.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "4d997b8e5920fcbeec742b58e583325d6419a6aca617ae8075c406a61c65ba8a"
+checksum = "1655131e4f7d3f0cb141f6eca71315ca40eff0f3d4de7cff0a82bacedd8c89b4"
 dependencies = [
  "anyhow",
  "hashbrown 0.17.1",
@@ -3877,14 +3955,14 @@ dependencies = [
  "serde_derive",
  "serde_json",
  "unicode-ident",
- "wasmparser 0.253.0",
+ "wasmparser 0.254.0",
 ]
 
 [[package]]
 name = "wit-parser"
-version = "0.254.0"
+version = "0.258.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "1655131e4f7d3f0cb141f6eca71315ca40eff0f3d4de7cff0a82bacedd8c89b4"
+checksum = "ff4daaa3cd97ae49ecd0a99dc009d453f93e0f083dd3be38c0f24a83a93e37ac"
 dependencies = [
  "anyhow",
  "hashbrown 0.17.1",
@@ -3896,7 +3974,7 @@ dependencies = [
  "serde_derive",
  "serde_json",
  "unicode-ident",
- "wasmparser 0.254.0",
+ "wasmparser 0.258.0",
 ]
 
 [[package]]
diff --git a/Cargo.toml b/Cargo.toml
index 440d4038..d991ef63 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -28,8 +28,8 @@ resolver = "2"
 # ct/ct-runner binaries key off the locked rev. To develop against a
 # local checkout, add a `[patch]` override — see AGENTS.md "Build & run".
 [workspace.dependencies]
-component-test-sdk = { git = "https://github.com/polymorph-components/polymorph-test", rev = "9f9e4d544b90e3321ac0572be92c57339b963d34" }
-component-test-runner = { git = "https://github.com/polymorph-components/polymorph-test", rev = "9f9e4d544b90e3321ac0572be92c57339b963d34" }
+component-test-sdk = { git = "https://github.com/polymorph-components/polymorph-test", rev = "3631d4a1eedfb40d0ad24c68ac5b22ec8ed8d935" }
+component-test-runner = { git = "https://github.com/polymorph-components/polymorph-test", rev = "3631d4a1eedfb40d0ad24c68ac5b22ec8ed8d935" }
 
 # The mutation run's profile (`just mutants`): dependencies optimized —
 # wasmtime and the RustCrypto cores are compiled once, at baseline, and make
diff --git a/conformance/driver-ct/Cargo.toml b/conformance/driver-ct/Cargo.toml
index c3ea2c04..3c01e245 100644
--- a/conformance/driver-ct/Cargo.toml
+++ b/conformance/driver-ct/Cargo.toml
@@ -16,8 +16,8 @@ path = "src/bin/compat.rs"
 [dependencies]
 component-test-runner = { workspace = true, features = ["wizer"] }
 polymorph-webcrypto-wasmtime = { path = "../../rust/wasmtime" }
-wasmtime = { version = "47", features = ["component-model", "component-model-async", "async", "runtime"] }
-wasmtime-wasi = "47"
+wasmtime = { version = "48", features = ["component-model", "component-model-async", "async", "runtime"] }
+wasmtime-wasi = "48"
 anyhow = "1"
 serde = { version = "1", features = ["derive"] }
 serde_json = "1"
diff --git a/conformance/driver-ct/jco/package-lock.json b/conformance/driver-ct/jco/package-lock.json
index 58016769..fdc491a1 100644
--- a/conformance/driver-ct/jco/package-lock.json
+++ b/conformance/driver-ct/jco/package-lock.json
@@ -8,7 +8,7 @@
       "dependencies": {
         "@bytecodealliance/jco-transpile": "0.7.0",
         "@bytecodealliance/preview2-shim": "0.17.9",
-        "@jsr/polymorph__test": "0.3.0",
+        "@jsr/polymorph__test": "0.3.1",
         "playwright-core": "1.62.1"
       }
     },
@@ -83,9 +83,9 @@
       }
     },
     "node_modules/@jsr/polymorph__test": {
-      "version": "0.3.0",
-      "resolved": "https://npm.jsr.io/~/11/@jsr/polymorph__test/0.3.0.tgz",
-      "integrity": "sha512-NlpHmd5fA3KB/aAaXrBW4KX57UXkl/V9+RLa+fchFUsjASsigthEHMEiiNozRYN/l3xgsKMSC7J3IPp9VtECsQ=="
+      "version": "0.3.1",
+      "resolved": "https://npm.jsr.io/~/11/@jsr/polymorph__test/0.3.1.tgz",
+      "integrity": "sha512-IIwmnw5F/JHgpuQUzHL+qFJ6lv+gr4mNuXRf2VXVqUQhaf1UaqdgOFHbN2bcsIVtZR3JH+2xKcODB3/SRcJJWg=="
     },
     "node_modules/@napi-rs/wasm-runtime": {
       "version": "1.2.3",
diff --git a/conformance/driver-ct/jco/package.json b/conformance/driver-ct/jco/package.json
index 28754a87..e580f4d7 100644
--- a/conformance/driver-ct/jco/package.json
+++ b/conformance/driver-ct/jco/package.json
@@ -12,7 +12,7 @@
   "dependencies": {
     "@bytecodealliance/jco-transpile": "0.7.0",
     "@bytecodealliance/preview2-shim": "0.17.9",
-    "@jsr/polymorph__test": "0.3.0",
+    "@jsr/polymorph__test": "0.3.1",
     "playwright-core": "1.62.1"
   }
 }
\ No newline at end of file
diff --git a/conformance/driver-ct/polyengine/deno.json b/conformance/driver-ct/polyengine/deno.json
index fd1f2b5e..9ab5efad 100644
--- a/conformance/driver-ct/polyengine/deno.json
+++ b/conformance/driver-ct/polyengine/deno.json
@@ -7,7 +7,7 @@
     "@polyengine/wasi": "jsr:@polyengine/wasi@0.6.3",
     "@polyengine/translator": "jsr:@polyengine/translator@0.6.3",
     "@polyengine/protocol": "jsr:@polyengine/protocol@0.3.1",
-    "@polymorph/test/polyengine-worker-main": "jsr:@polymorph/test@0.3.0/polyengine-worker-main"
+    "@polymorph/test/polyengine-worker-main": "jsr:@polymorph/test@0.3.1/polyengine-worker-main"
   },
   "minimumDependencyAge": { "age": "P1D", "exclude": ["jsr:@polyengine/*", "jsr:@polymorph/*"] },
   "tasks": {
diff --git a/conformance/driver-ct/polyengine/deno.lock b/conformance/driver-ct/polyengine/deno.lock
index 18a1684b..518e5bec 100644
--- a/conformance/driver-ct/polyengine/deno.lock
+++ b/conformance/driver-ct/polyengine/deno.lock
@@ -8,8 +8,8 @@
     "jsr:@polyengine/runtime@~0.6.3": "0.6.3",
     "jsr:@polyengine/translator@0.6.3": "0.6.3",
     "jsr:@polyengine/wasi@0.6.3": "0.6.3",
-    "jsr:@polymorph/test@0.3.0": "0.3.0",
-    "npm:@jsr/polymorph__test@0.3.0": "0.3.0",
+    "jsr:@polymorph/test@0.3.1": "0.3.1",
+    "npm:@jsr/polymorph__test@0.3.1": "0.3.1",
     "npm:playwright-core@1.62.1": "1.62.1"
   },
   "jsr": {
@@ -41,14 +41,14 @@
         "jsr:@polyengine/protocol@~0.3.1"
       ]
     },
-    "@polymorph/test@0.3.0": {
-      "integrity": "dab82b57524c9ad375d3cc75db1f083c198a24d40105d3f1734f719b3db3f70a"
+    "@polymorph/test@0.3.1": {
+      "integrity": "4367fba629647e41c60edecf700f3e060337b1da30a500b120b7010044888753"
     }
   },
   "npm": {
-    "@jsr/polymorph__test@0.3.0": {
-      "integrity": "sha512-NlpHmd5fA3KB/aAaXrBW4KX57UXkl/V9+RLa+fchFUsjASsigthEHMEiiNozRYN/l3xgsKMSC7J3IPp9VtECsQ==",
-      "tarball": "https://npm.jsr.io/~/11/@jsr/polymorph__test/0.3.0.tgz"
+    "@jsr/polymorph__test@0.3.1": {
+      "integrity": "sha512-IIwmnw5F/JHgpuQUzHL+qFJ6lv+gr4mNuXRf2VXVqUQhaf1UaqdgOFHbN2bcsIVtZR3JH+2xKcODB3/SRcJJWg==",
+      "tarball": "https://npm.jsr.io/~/11/@jsr/polymorph__test/0.3.1.tgz"
     },
     "playwright-core@1.62.1": {
       "integrity": "sha512-wPYSwEBJY9GHraISXqyqtx0na0LpO3XEX7jNDhntbex7tzUS7kLnZsOlFruFJB4Hi/rhDMjXGqHewDZ68nYZVw==",
@@ -62,11 +62,11 @@
       "jsr:@polyengine/runtime@0.6.3",
       "jsr:@polyengine/translator@0.6.3",
       "jsr:@polyengine/wasi@0.6.3",
-      "jsr:@polymorph/test@0.3.0"
+      "jsr:@polymorph/test@0.3.1"
     ],
     "packageJson": {
       "dependencies": [
-        "npm:@jsr/polymorph__test@0.3.0",
+        "npm:@jsr/polymorph__test@0.3.1",
         "npm:playwright-core@1.62.1"
       ]
     }
diff --git a/conformance/driver-ct/polyengine/package-lock.json b/conformance/driver-ct/polyengine/package-lock.json
index c580bc45..cf23499e 100644
--- a/conformance/driver-ct/polyengine/package-lock.json
+++ b/conformance/driver-ct/polyengine/package-lock.json
@@ -6,14 +6,14 @@
     "": {
       "name": "@polymorph/webcrypto-conformance-polyengine-browser",
       "dependencies": {
-        "@jsr/polymorph__test": "0.3.0",
+        "@jsr/polymorph__test": "0.3.1",
         "playwright-core": "1.62.1"
       }
     },
     "node_modules/@jsr/polymorph__test": {
-      "version": "0.3.0",
-      "resolved": "https://npm.jsr.io/~/11/@jsr/polymorph__test/0.3.0.tgz",
-      "integrity": "sha512-NlpHmd5fA3KB/aAaXrBW4KX57UXkl/V9+RLa+fchFUsjASsigthEHMEiiNozRYN/l3xgsKMSC7J3IPp9VtECsQ=="
+      "version": "0.3.1",
+      "resolved": "https://npm.jsr.io/~/11/@jsr/polymorph__test/0.3.1.tgz",
+      "integrity": "sha512-IIwmnw5F/JHgpuQUzHL+qFJ6lv+gr4mNuXRf2VXVqUQhaf1UaqdgOFHbN2bcsIVtZR3JH+2xKcODB3/SRcJJWg=="
     },
     "node_modules/playwright-core": {
       "version": "1.62.1",
diff --git a/conformance/driver-ct/polyengine/package.json b/conformance/driver-ct/polyengine/package.json
index 9ce8dba1..5ad20588 100644
--- a/conformance/driver-ct/polyengine/package.json
+++ b/conformance/driver-ct/polyengine/package.json
@@ -4,7 +4,7 @@
   "type": "module",
   "description": "Node driver + bundled worker inputs for the polyengine-browser conformance rows: both suites runtime-linked inside headless Chromium with this repo's polyengine host module, through the upstream page driver and polyengine worker-main.",
   "dependencies": {
-    "@jsr/polymorph__test": "0.3.0",
+    "@jsr/polymorph__test": "0.3.1",
     "playwright-core": "1.62.1"
   }
 }
diff --git a/examples/jco-demo/package-lock.json b/examples/jco-demo/package-lock.json
index a86a7870..48c4c27d 100644
--- a/examples/jco-demo/package-lock.json
+++ b/examples/jco-demo/package-lock.json
@@ -9,7 +9,7 @@
       "version": "0.1.0",
       "devDependencies": {
         "@bytecodealliance/jco-transpile": "0.7.0",
-        "@jsr/polymorph__test": "0.3.0"
+        "@jsr/polymorph__test": "0.3.1"
       }
     },
     "node_modules/@bytecodealliance/jco-transpile": {
@@ -84,9 +84,9 @@
       }
     },
     "node_modules/@jsr/polymorph__test": {
-      "version": "0.3.0",
-      "resolved": "https://npm.jsr.io/~/11/@jsr/polymorph__test/0.3.0.tgz",
-      "integrity": "sha512-NlpHmd5fA3KB/aAaXrBW4KX57UXkl/V9+RLa+fchFUsjASsigthEHMEiiNozRYN/l3xgsKMSC7J3IPp9VtECsQ==",
+      "version": "0.3.1",
+      "resolved": "https://npm.jsr.io/~/11/@jsr/polymorph__test/0.3.1.tgz",
+      "integrity": "sha512-IIwmnw5F/JHgpuQUzHL+qFJ6lv+gr4mNuXRf2VXVqUQhaf1UaqdgOFHbN2bcsIVtZR3JH+2xKcODB3/SRcJJWg==",
       "dev": true
     },
     "node_modules/@napi-rs/wasm-runtime": {
diff --git a/examples/jco-demo/package.json b/examples/jco-demo/package.json
index 85a8f146..19f0d02f 100644
--- a/examples/jco-demo/package.json
+++ b/examples/jco-demo/package.json
@@ -12,6 +12,6 @@
   },
   "devDependencies": {
     "@bytecodealliance/jco-transpile": "0.7.0",
-    "@jsr/polymorph__test": "0.3.0"
+    "@jsr/polymorph__test": "0.3.1"
   }
 }
\ No newline at end of file
diff --git a/examples/wasmtime-demo/Cargo.toml b/examples/wasmtime-demo/Cargo.toml
index e4244f17..4cc8189d 100644
--- a/examples/wasmtime-demo/Cargo.toml
+++ b/examples/wasmtime-demo/Cargo.toml
@@ -13,6 +13,6 @@ path = "src/main.rs"
 # The `polymorph:webcrypto` host implementation lives in this crate; the binary
 # obtains its imports from its `add_to_linker`.
 polymorph-webcrypto-wasmtime = { path = "../../rust/wasmtime" }
-wasmtime = { version = "47", features = ["component-model", "component-model-async", "async", "cranelift", "runtime"] }
+wasmtime = { version = "48", features = ["component-model", "component-model-async", "async", "cranelift", "runtime"] }
 tokio = { version = "1", features = ["macros", "rt-multi-thread", "time"] }
 anyhow = "1"
diff --git a/experiments/hpke/host-test/Cargo.toml b/experiments/hpke/host-test/Cargo.toml
index df4ecdf6..edc1aadd 100644
--- a/experiments/hpke/host-test/Cargo.toml
+++ b/experiments/hpke/host-test/Cargo.toml
@@ -7,7 +7,7 @@ description = "Wasmtime-host smoke tests for the experimental HPKE component."
 
 [dependencies]
 polymorph-webcrypto-wasmtime = { path = "../../../rust/wasmtime" }
-wasmtime = { version = "47", features = ["component-model", "component-model-async", "async", "cranelift", "runtime"] }
+wasmtime = { version = "48", features = ["component-model", "component-model-async", "async", "cranelift", "runtime"] }
 anyhow = "1"
 
 [dev-dependencies]
diff --git a/js/componentize/wpt/parity/package-lock.json b/js/componentize/wpt/parity/package-lock.json
index 397c8486..1813f9bd 100644
--- a/js/componentize/wpt/parity/package-lock.json
+++ b/js/componentize/wpt/parity/package-lock.json
@@ -10,7 +10,7 @@
       "devDependencies": {
         "@bytecodealliance/jco-transpile": "0.7.0",
         "@bytecodealliance/preview2-shim": "^0.19.0",
-        "@jsr/polymorph__test": "0.3.0",
+        "@jsr/polymorph__test": "0.3.1",
         "playwright-core": "^1.62.1"
       }
     },
@@ -86,9 +86,9 @@
       }
     },
     "node_modules/@jsr/polymorph__test": {
-      "version": "0.3.0",
-      "resolved": "https://npm.jsr.io/~/11/@jsr/polymorph__test/0.3.0.tgz",
-      "integrity": "sha512-NlpHmd5fA3KB/aAaXrBW4KX57UXkl/V9+RLa+fchFUsjASsigthEHMEiiNozRYN/l3xgsKMSC7J3IPp9VtECsQ==",
+      "version": "0.3.1",
+      "resolved": "https://npm.jsr.io/~/11/@jsr/polymorph__test/0.3.1.tgz",
+      "integrity": "sha512-IIwmnw5F/JHgpuQUzHL+qFJ6lv+gr4mNuXRf2VXVqUQhaf1UaqdgOFHbN2bcsIVtZR3JH+2xKcODB3/SRcJJWg==",
       "dev": true
     },
     "node_modules/@napi-rs/wasm-runtime": {
diff --git a/js/componentize/wpt/parity/package.json b/js/componentize/wpt/parity/package.json
index dc7bf6fd..b44a6ef2 100644
--- a/js/componentize/wpt/parity/package.json
+++ b/js/componentize/wpt/parity/package.json
@@ -18,6 +18,6 @@
     "@bytecodealliance/jco-transpile": "0.7.0",
     "@bytecodealliance/preview2-shim": "^0.19.0",
     "playwright-core": "^1.62.1",
-    "@jsr/polymorph__test": "0.3.0"
+    "@jsr/polymorph__test": "0.3.1"
   }
 }
\ No newline at end of file
diff --git a/js/jco/package-lock.json b/js/jco/package-lock.json
index ddc36b61..4efa0ec5 100644
--- a/js/jco/package-lock.json
+++ b/js/jco/package-lock.json
@@ -9,7 +9,7 @@
       "version": "0.1.0",
       "devDependencies": {
         "@bytecodealliance/jco-transpile": "0.7.0",
-        "@jsr/polymorph__test": "0.3.0",
+        "@jsr/polymorph__test": "0.3.1",
         "typescript": "^5.9.3"
       }
     },
@@ -85,9 +85,9 @@
       }
     },
     "node_modules/@jsr/polymorph__test": {
-      "version": "0.3.0",
-      "resolved": "https://npm.jsr.io/~/11/@jsr/polymorph__test/0.3.0.tgz",
-      "integrity": "sha512-NlpHmd5fA3KB/aAaXrBW4KX57UXkl/V9+RLa+fchFUsjASsigthEHMEiiNozRYN/l3xgsKMSC7J3IPp9VtECsQ==",
+      "version": "0.3.1",
+      "resolved": "https://npm.jsr.io/~/11/@jsr/polymorph__test/0.3.1.tgz",
+      "integrity": "sha512-IIwmnw5F/JHgpuQUzHL+qFJ6lv+gr4mNuXRf2VXVqUQhaf1UaqdgOFHbN2bcsIVtZR3JH+2xKcODB3/SRcJJWg==",
       "dev": true
     },
     "node_modules/@napi-rs/wasm-runtime": {
diff --git a/js/jco/package.json b/js/jco/package.json
index bea25d76..8710c7b1 100644
--- a/js/jco/package.json
+++ b/js/jco/package.json
@@ -13,6 +13,6 @@
   "devDependencies": {
     "@bytecodealliance/jco-transpile": "0.7.0",
     "typescript": "^5.9.3",
-    "@jsr/polymorph__test": "0.3.0"
+    "@jsr/polymorph__test": "0.3.1"
   }
 }
\ No newline at end of file
diff --git a/rust/wasmtime/Cargo.toml b/rust/wasmtime/Cargo.toml
index 7c25f38d..626c7482 100644
--- a/rust/wasmtime/Cargo.toml
+++ b/rust/wasmtime/Cargo.toml
@@ -9,7 +9,7 @@ description = "Wasmtime host implementation of the polymorph:webcrypto interface
 # Wasmtime with component-model async (streams/futures) support. The
 # `component-model-async` feature gates the host `StreamReader`/`StreamProducer`
 # API used here.
-wasmtime = { version = "47", features = ["component-model", "component-model-async", "async", "runtime"] }
+wasmtime = { version = "48", features = ["component-model", "component-model-async", "async", "runtime"] }
 futures = "0.3"
 # Runtime-agnostic async primitives. Used for the input-admission semaphore:
 # waking a parked waiter outside the lock its waker may re-enter, deciding
diff --git a/scripts/setup.sh b/scripts/setup.sh
index 43ce2536..2f608276 100755
--- a/scripts/setup.sh
+++ b/scripts/setup.sh
@@ -31,7 +31,7 @@ REPO_ROOT="$(cd "$(dirname "${BASH_SOURCE[0]}")/.." && pwd)"
 WASM_TOOLS_VERSION="${WASM_TOOLS_VERSION:-1.247.0}"
 JUST_VERSION="${JUST_VERSION:-1.54.0}"
 WAC_VERSION="${WAC_VERSION:-0.10.1}"
-WASMTIME_VERSION="${WASMTIME_VERSION:-47.0.1}"
+WASMTIME_VERSION="${WASMTIME_VERSION:-48.0.1}"
 
 log() { printf '\n==> %s\n' "$1"; }