diff --git a/.github/workflows/tests.yml b/.github/workflows/tests.yml
index c9a012785..927fc90b1 100644
--- a/.github/workflows/tests.yml
+++ b/.github/workflows/tests.yml
@@ -105,7 +105,7 @@ jobs:
           # most of the time caches should hit.
           echo "::set-output name=week-no::$(date -u +%Y-%U)"
 
-      - uses: actions/cache@v3
+      - uses: actions/cache@704facf57e6136b1bc63b828d79edcd491f0ee84
         id: cache
         with:
           path: |