diff --git a/.github/workflows/pythonapp.yml b/.github/workflows/pythonapp.yml
index 4ab2aeb..8646b8c 100644
--- a/.github/workflows/pythonapp.yml
+++ b/.github/workflows/pythonapp.yml
@@ -14,7 +14,7 @@ jobs:
         python-version: ["3.7", "3.8", "3.9", "3.10"]
     name: Python ${{ matrix.python-version }}
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
       - name: Set up Python ${{ matrix.python-version }}
         uses: actions/setup-python@v4.6.0
         with:
@@ -35,7 +35,7 @@ jobs:
     runs-on: ubuntu-latest
     name: Lint
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
       - name: Set up Python 3.8
         uses: actions/setup-python@v4.6.0
         with:
diff --git a/.github/workflows/pythonpublish.yml b/.github/workflows/pythonpublish.yml
index 5771007..793b290 100644
--- a/.github/workflows/pythonpublish.yml
+++ b/.github/workflows/pythonpublish.yml
@@ -8,7 +8,7 @@ jobs:
   deploy:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
       - name: Set up Python
         uses: actions/setup-python@v4.6.0
         with: