diff --git a/.github/workflows/ci_tests.yaml b/.github/workflows/ci_tests.yaml
index 6eab1ad..975dd7e 100644
--- a/.github/workflows/ci_tests.yaml
+++ b/.github/workflows/ci_tests.yaml
@@ -19,7 +19,7 @@ jobs:
     - name: Check out repository
       uses: actions/checkout@v4
     - name: Set up Python ${{ matrix.python }}
-      uses: actions/setup-python@v4
+      uses: actions/setup-python@v5
       with:
         python-version: 3.9
     - name: Install base dependencies