diff --git a/.github/workflows/CI.yml b/.github/workflows/CI.yml
index 953428b..67118ea 100644
--- a/.github/workflows/CI.yml
+++ b/.github/workflows/CI.yml
@@ -30,7 +30,7 @@ jobs:
       - uses: actions/checkout@v4
       - name: Cache p4est
         id: cache-p4est
-        uses: actions/cache@v2
+        uses: actions/cache@v4
         with:
          path: ${{env.P4EST_ROOT_DIR}}
          key: ${{ runner.os }}-build-${{ env.P4EST_ROOT_DIR }}-