diff --git a/.github/workflows/ci_testing.yml b/.github/workflows/ci_testing.yml
index c1728c2..fb00fe0 100644
--- a/.github/workflows/ci_testing.yml
+++ b/.github/workflows/ci_testing.yml
@@ -49,7 +49,7 @@ jobs:
       run: echo "dir=$(pip cache dir)" >> $GITHUB_OUTPUT
 
     - name: Cache pip
-      uses: actions/cache@v3
+      uses: actions/cache@v4
       with:
         path: ${{ steps.pip-cache.outputs.dir }}
         key: ${{ runner.os }}-${{ matrix.python-version }}-pip-${{ hashFiles('requirements.txt') }}
diff --git a/.github/workflows/code-format.yml b/.github/workflows/code-format.yml
index 120f13f..8f3e0ae 100644
--- a/.github/workflows/code-format.yml
+++ b/.github/workflows/code-format.yml
@@ -23,7 +23,7 @@ jobs:
 
       - name: set PY
         run: echo "PY=$(python -VV | sha256sum | cut -d' ' -f1)" >> $GITHUB_ENV
-      - uses: actions/cache@v3
+      - uses: actions/cache@v4
         with:
           path: ~/.cache/pre-commit
           key: pre-commit|${{ env.PY }}|${{ hashFiles('.pre-commit-config.yaml') }}