diff --git a/.github/workflows/ci_test-acts.yml b/.github/workflows/ci_test-acts.yml
index 8349eb07..1b9a1f2b 100644
--- a/.github/workflows/ci_test-acts.yml
+++ b/.github/workflows/ci_test-acts.yml
@@ -32,7 +32,7 @@ jobs:
         run: echo "::set-output name=dir::$(pip cache dir)"
 
       - name: Cache pip
-        uses: actions/cache@v3
+        uses: actions/cache@v4
         with:
           path: ${{ steps.pip-cache.outputs.dir }}
           key: ${{ runner.os }}-py${{ matrix.python }}-pip-${{ hashFiles('requirements.txt') }}