diff --git a/.github/workflows/lint.yml b/.github/workflows/lint.yml
index 7ce2828..a4f6ce0 100644
--- a/.github/workflows/lint.yml
+++ b/.github/workflows/lint.yml
@@ -10,7 +10,7 @@ jobs:
   lint:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
       - name: Set up Python
         uses: actions/setup-python@v4
         with:
diff --git a/.github/workflows/publish.yml b/.github/workflows/publish.yml
index 858503f..adafe7f 100644
--- a/.github/workflows/publish.yml
+++ b/.github/workflows/publish.yml
@@ -13,7 +13,7 @@ jobs:
        id-token: write
      steps:
        - name: Checkout
-         uses: actions/checkout@v3
+         uses: actions/checkout@v4
        - name: Set up Python
          uses: actions/setup-python@v4
          with:
diff --git a/.github/workflows/regen.yml b/.github/workflows/regen.yml
index ab67c80..ba815e7 100644
--- a/.github/workflows/regen.yml
+++ b/.github/workflows/regen.yml
@@ -10,7 +10,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
       - name: Set up Python
         uses: actions/setup-python@v4
         with:
diff --git a/.github/workflows/unittest.yml b/.github/workflows/unittest.yml
index fd91639..3f6e2d7 100644
--- a/.github/workflows/unittest.yml
+++ b/.github/workflows/unittest.yml
@@ -12,7 +12,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
       - name: Set up Python
         uses: actions/setup-python@v4
         with: