diff --git a/.github/workflows/docs.yml b/.github/workflows/docs.yml
index 8f08243..d2ccb52 100644
--- a/.github/workflows/docs.yml
+++ b/.github/workflows/docs.yml
@@ -13,7 +13,7 @@ jobs:
       - name: Checkout source
         uses: actions/checkout@v3
       - name: Cache tox
-        uses: actions/cache@v3
+        uses: actions/cache@v4
         with:
           path: .tox
           key: tox-${{hashFiles('pyproject.toml')}}
diff --git a/.github/workflows/tests.yml b/.github/workflows/tests.yml
index 4471de9..4cbb278 100644
--- a/.github/workflows/tests.yml
+++ b/.github/workflows/tests.yml
@@ -30,7 +30,7 @@ jobs:
         uses: actions/checkout@v3
 
       - name: Cache tox
-        uses: actions/cache@v3
+        uses: actions/cache@v4
         with:
           path: .tox
           key: tox-${{hashFiles('pyproject.toml') }}