diff --git a/.github/workflows/ci.yaml b/.github/workflows/ci.yaml
index 3bcc311..ac0c2db 100644
--- a/.github/workflows/ci.yaml
+++ b/.github/workflows/ci.yaml
@@ -20,7 +20,7 @@ jobs:
           go-version-file: "go.mod"
 
       - name: Cache Go build
-        uses: actions/cache@v4
+        uses: actions/cache@8b402f58fbc84540c8b491a91e594a4576fec3d7 # v5
         with:
           path: |
             ~/.cache/go-build