diff --git a/deno.json b/deno.json
index fa1ffde..d3e96c1 100644
--- a/deno.json
+++ b/deno.json
@@ -6,7 +6,7 @@
   },
   "imports": {
     "@steno/steno": "jsr:@steno/steno@^0.12.0",
-    "@std/assert": "jsr:@std/assert@1",
+    "@std/assert": "jsr:@std/assert@1.0.19",
     "marked": "npm:marked@18.0.11"
   },
   "tasks": {
diff --git a/deno.lock b/deno.lock
index dd873b4..2c0acca 100644
--- a/deno.lock
+++ b/deno.lock
@@ -5,7 +5,7 @@
     "jsr:@deno/emit@0.46.0": "0.46.0",
     "jsr:@deno/graph@~0.73.1": "0.73.1",
     "jsr:@std/assert@0.223": "0.223.0",
-    "jsr:@std/assert@1": "1.0.19",
+    "jsr:@std/assert@1.0.19": "1.0.19",
     "jsr:@std/bytes@0.223": "0.223.0",
     "jsr:@std/collections@^1.1.3": "1.3.0",
     "jsr:@std/fmt@0.223": "0.223.0",
@@ -122,7 +122,7 @@
   },
   "workspace": {
     "dependencies": [
-      "jsr:@std/assert@1",
+      "jsr:@std/assert@1.0.19",
       "jsr:@steno/steno@0.12",
       "npm:marked@18.0.11"
     ]