diff --git a/.github/workflows/mutation-testing.yml b/.github/workflows/mutation-testing.yml
index f14873b..3081fc6 100644
--- a/.github/workflows/mutation-testing.yml
+++ b/.github/workflows/mutation-testing.yml
@@ -64,7 +64,7 @@ jobs:
         with:
           toolchain: stable
 
-      - uses: Swatinem/rust-cache@v2.8.2
+      - uses: Swatinem/rust-cache@v2.9.1
         with:
           prefix-key: mutants-${{ matrix.package }}