diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 00923a7..ca99c8e 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -41,7 +41,7 @@ jobs:
       - name: Configure Poetry
         run: poetry config virtualenvs.in-project true
       - name: Cache Poetry virtualenv
-        uses: actions/cache@v5
+        uses: actions/cache@v6
         with:
           path: backend/.venv
           key: poetry-${{ runner.os }}-py3.12-${{ hashFiles('backend/poetry.lock') }}