diff --git a/.github/workflows/pip-tests.yml b/.github/workflows/pip-tests.yml
index 474cc07..08377e4 100644
--- a/.github/workflows/pip-tests.yml
+++ b/.github/workflows/pip-tests.yml
@@ -24,7 +24,7 @@ jobs:
         uses: actions/setup-python@v2
         with:
           python-version: 3.7
-      - uses: actions/checkout@v2.4.0
+      - uses: actions/checkout@v4.1.1
       - name: Install Python dependencies
         run: |
           python -m pip install --upgrade pip
diff --git a/.github/workflows/tests.yml b/.github/workflows/tests.yml
index 51839d9..438d019 100644
--- a/.github/workflows/tests.yml
+++ b/.github/workflows/tests.yml
@@ -19,7 +19,7 @@ jobs:
       uses: actions/setup-python@v2
       with:
         python-version: 3.7
-    - uses: actions/checkout@v2.4.0
+    - uses: actions/checkout@v4.1.1
     - name: Install Python dependencies
       run: |
         python -m pip install --upgrade pip
@@ -52,7 +52,7 @@ jobs:
         uses: actions/setup-python@v2
         with:
           python-version: 3.7
-      - uses: actions/checkout@v2.4.0
+      - uses: actions/checkout@v4.1.1
       - name: Install Python dependencies
         run: |
           python -m pip install --upgrade pip