diff --git a/.github/workflows/release.yml b/.github/workflows/release.yml
index 7b60da0f..863c8e1e 100644
--- a/.github/workflows/release.yml
+++ b/.github/workflows/release.yml
@@ -23,7 +23,7 @@ jobs:
         with:
           fetch-depth: 0
 
-      - uses: dtolnay/rust-toolchain@stable
+      - uses: dtolnay/rust-toolchain@4be7066ada62dd38de10e7b70166bc74ed198c30 # stable
         with:
           toolchain: stable
           components: rustfmt, clippy