diff --git a/.github/workflows/testing.yml b/.github/workflows/testing.yml
index 96492174..42be9559 100644
--- a/.github/workflows/testing.yml
+++ b/.github/workflows/testing.yml
@@ -50,7 +50,7 @@ jobs:
           poetry config virtualenvs.create true
           poetry config virtualenvs.in-project true
       - name: Cache poetry venv
-        uses: actions/cache@v3
+        uses: actions/cache@v4
         id: poetry-cache
         with:
           path: .venv
@@ -89,7 +89,7 @@ jobs:
           poetry config virtualenvs.create true
           poetry config virtualenvs.in-project true
       - name: Cache poetry venv
-        uses: actions/cache@v3
+        uses: actions/cache@v4
         id: poetry-cache
         with:
           path: .venv