diff --git a/.github/workflows/release.yml b/.github/workflows/release.yml
index 7b60da0f..da5b9e5a 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@29eef336d9b2848a0b548edc03f92a220660cdb8 # stable
         with:
           toolchain: stable
           components: rustfmt, clippy