diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index 86a5b83f6..3b6919207 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -54,7 +54,7 @@ jobs:
         run: |
           sudo apt-get install -y musl-tools --no-install-recommends
       - uses: actions/checkout@8ade135a41bc03ea155e62e844d188df1ea18608 # v4.1.0
-      - uses: dtolnay/rust-toolchain@master
+      - uses: dtolnay/rust-toolchain@d76c2a93c593483c9892fd8d2538734f73ed8588 #stable
         with:
           toolchain: stable
           target: ${{ matrix.target }}