diff --git a/prqlc/packages/snap/snapcraft.yaml b/prqlc/packages/snap/snapcraft.yaml
index b5466a837b05..56a29d81c67c 100644
--- a/prqlc/packages/snap/snapcraft.yaml
+++ b/prqlc/packages/snap/snapcraft.yaml
@@ -19,9 +19,14 @@ icon: web/website/static/img/icon.svg
 parts:
   rust-deps:
     plugin: nil
+    # `--default-toolchain none` (not just omitting the flag — that would
+    # install `stable`): the `prqlc` part builds from the source tree, where
+    # `rust-toolchain.toml` overrides whatever default we set here. Pinning one
+    # only downloads a second, unused toolchain — and reads as an MSRV
+    # guarantee the build never actually makes.
     override-pull:
       curl --proto '=https' --tlsv1.2 -sSf https://sh.rustup.rs | sh -s -- -y
-      --profile minimal --default-toolchain 1.75.0
+      --profile minimal --default-toolchain none
   prqlc:
     plugin: rust
     after: [rust-deps]