diff --git a/.github/workflows/deploy-docs.yaml b/.github/workflows/deploy-docs.yaml
index b1252b0..33e0eec 100644
--- a/.github/workflows/deploy-docs.yaml
+++ b/.github/workflows/deploy-docs.yaml
@@ -17,7 +17,7 @@ jobs:
 
     steps:
       - name: Checkout
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
         with:
           fetch-depth: 0  # otherwise, you will failed to push refs to dest repo
 
diff --git a/.github/workflows/main.yaml b/.github/workflows/main.yaml
index d418e8d..e9fd6de 100644
--- a/.github/workflows/main.yaml
+++ b/.github/workflows/main.yaml
@@ -17,7 +17,7 @@ jobs:
     steps:
 
       - name: Check out repository
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
 
       - name: Set up Python ${{ matrix.python-version }}
         uses: actions/setup-python@v5
diff --git a/.github/workflows/pypi-publish.yaml b/.github/workflows/pypi-publish.yaml
index bd0f852..6b56510 100644
--- a/.github/workflows/pypi-publish.yaml
+++ b/.github/workflows/pypi-publish.yaml
@@ -11,7 +11,7 @@ jobs:
     runs-on: ubuntu-latest
 
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
 
       - name: Set up Python
         uses: actions/setup-python@v5