diff --git a/.github/workflows/pythonpackage.yml b/.github/workflows/pythonpackage.yml
index 1eeacde..c764896 100644
--- a/.github/workflows/pythonpackage.yml
+++ b/.github/workflows/pythonpackage.yml
@@ -32,7 +32,7 @@ jobs:
       run: |
         poetry config virtualenvs.create true --local
         poetry config virtualenvs.in-project true --local
-    - uses: actions/cache@v3
+    - uses: actions/cache@v4
       name: Define a cache for the virtual environment based on the dependencies lock file
       with:
         path: ./.venv