diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index a926ebf..4e432cb 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -42,7 +42,7 @@ jobs:
       # load cached venv if cache exists
       - name: Load cached venv
         id: cached-poetry-dependencies
-        uses: actions/cache@v4
+        uses: actions/cache@v5
         with:
           path: .venv
           key: venv-${{ runner.os }}-${{ hashFiles('**/poetry.lock') }}