diff --git a/.github/workflows/bench.yml b/.github/workflows/bench.yml
index 41287d4..09f87c1 100644
--- a/.github/workflows/bench.yml
+++ b/.github/workflows/bench.yml
@@ -40,7 +40,7 @@ jobs:
         run: poetry config virtualenvs.in-project true
 
       - name: Set up cache
-        uses: actions/cache@v4
+        uses: actions/cache@v5
         id: cache
         with:
           path: .venv
diff --git a/.github/workflows/python-test.yml b/.github/workflows/python-test.yml
index 8e9e8b0..b6588a4 100644
--- a/.github/workflows/python-test.yml
+++ b/.github/workflows/python-test.yml
@@ -40,7 +40,7 @@ jobs:
         run: poetry config virtualenvs.in-project true
 
       - name: Set up cache
-        uses: actions/cache@v4
+        uses: actions/cache@v5
         id: cache
         with:
           path: .venv