diff --git a/.github/workflows/bench.yml b/.github/workflows/bench.yml
index 4863515..5b28ceb 100644
--- a/.github/workflows/bench.yml
+++ b/.github/workflows/bench.yml
@@ -35,7 +35,7 @@ jobs:
           persist-credentials: false
 
       - name: Install stable
-        uses: dtolnay/rust-toolchain@3c5f7ea28cd621ae0bf5283f0e981fb97b8a7af9
+        uses: dtolnay/rust-toolchain@6c977a6ca4077a0ceb28ffbe03f59d46e9ac8772
         id: toolchain
         with:
           toolchain: stable
diff --git a/.github/workflows/pull_request.yml b/.github/workflows/pull_request.yml
index 9f3decc..a50068c 100644
--- a/.github/workflows/pull_request.yml
+++ b/.github/workflows/pull_request.yml
@@ -91,7 +91,7 @@ jobs:
 
       # use stable toolchain for clippy to avoid CI failures due to unfinished lints
       - name: Install toolchain
-        uses: dtolnay/rust-toolchain@3c5f7ea28cd621ae0bf5283f0e981fb97b8a7af9
+        uses: dtolnay/rust-toolchain@6c977a6ca4077a0ceb28ffbe03f59d46e9ac8772
         with:
           toolchain: "stable"
           components: "clippy"