diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index bcc0d06..8ab3a12 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -26,7 +26,7 @@ jobs:
     runs-on: ubuntu-latest
 
     steps:
-      - uses: actions/checkout@v3.5.3
+      - uses: actions/checkout@v4.1.0
       - name: Set up Python 3.9
         uses: actions/setup-python@v4.7.0
         with:
diff --git a/.github/workflows/docs.yml b/.github/workflows/docs.yml
index 36056ce..a099175 100644
--- a/.github/workflows/docs.yml
+++ b/.github/workflows/docs.yml
@@ -28,7 +28,7 @@ jobs:
       working-directory: ./docs
     steps:
       - name: Checkout code
-        uses: actions/checkout@v3.5.3
+        uses: actions/checkout@v4.1.0
       - name: Set up Python 3.9
         uses: actions/setup-python@v4.7.0
         with:
diff --git a/.github/workflows/release.yml b/.github/workflows/release.yml
index df15d16..730cc44 100644
--- a/.github/workflows/release.yml
+++ b/.github/workflows/release.yml
@@ -27,7 +27,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout code
-        uses: actions/checkout@v3.5.3
+        uses: actions/checkout@v4.1.0
       - name: Set up Python 3.9
         uses: actions/setup-python@v4.7.0
         with: