diff --git a/.github/workflows/tests.yml b/.github/workflows/tests.yml
index e3b305b..b009806 100644
--- a/.github/workflows/tests.yml
+++ b/.github/workflows/tests.yml
@@ -26,7 +26,7 @@ jobs:
         python-version: ${{ matrix.python-version }}
     
     - name: Cache pip packages
-      uses: actions/cache@v3
+      uses: actions/cache@v4
       with:
         path: ~/.cache/pip
         key: ${{ runner.os }}-pip-${{ hashFiles('**/requirements.txt', '**/pyproject.toml') }}