diff --git a/.github/workflows/lint.yml b/.github/workflows/lint.yml
index 200d186..93e3f0f 100644
--- a/.github/workflows/lint.yml
+++ b/.github/workflows/lint.yml
@@ -29,7 +29,7 @@ jobs:
         run: pip install nox
 
       - name: Checkout code
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
 
       - name: Run nox lint session
         run: nox --sessions lint
diff --git a/.github/workflows/run_tests.yml b/.github/workflows/run_tests.yml
index d2797fb..1351948 100644
--- a/.github/workflows/run_tests.yml
+++ b/.github/workflows/run_tests.yml
@@ -26,7 +26,7 @@ jobs:
 
     steps:
       # check out repository
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
 
       - name: Set up Python 3.9
         uses: actions/setup-python@v4