diff --git a/.github/workflows/codecov.yml b/.github/workflows/codecov.yml
index e69ed72..1793a0a 100644
--- a/.github/workflows/codecov.yml
+++ b/.github/workflows/codecov.yml
@@ -12,7 +12,7 @@ jobs:
 
     steps:
       - name: Checkout Repository
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
 
       - name: Set up Python
         uses: actions/setup-python@v4
diff --git a/.github/workflows/formatter.yml b/.github/workflows/formatter.yml
index a11d2aa..0ec0b06 100644
--- a/.github/workflows/formatter.yml
+++ b/.github/workflows/formatter.yml
@@ -18,7 +18,7 @@ jobs:
 
         steps:
           - name: Check out source repository
-            uses: actions/checkout@v3
+            uses: actions/checkout@v4
           - name: Set up Python environment
             uses: actions/setup-python@v4
             with:
diff --git a/.github/workflows/gendocs.yml b/.github/workflows/gendocs.yml
index a26ace9..f423f8a 100644
--- a/.github/workflows/gendocs.yml
+++ b/.github/workflows/gendocs.yml
@@ -19,7 +19,7 @@ jobs:
       url: ${{ steps.deployment.outputs.page_url }}
     steps:
       - name: Checkout code
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
       - name: Set up Python
         uses: actions/setup-python@v3
         with: