diff --git a/.github/workflows/codeql-analysis.yml b/.github/workflows/codeql-analysis.yml
index 9346c267..3de08fb7 100644
--- a/.github/workflows/codeql-analysis.yml
+++ b/.github/workflows/codeql-analysis.yml
@@ -26,7 +26,7 @@ jobs:
 
     steps:
       - name: Checkout repository
-        uses: actions/checkout@v2
+        uses: actions/checkout@v4
 
       # Initializes the CodeQL tools for scanning.
       - name: Set up Python
diff --git a/.github/workflows/publish.yaml b/.github/workflows/publish.yaml
index 0033988a..bebd4dab 100644
--- a/.github/workflows/publish.yaml
+++ b/.github/workflows/publish.yaml
@@ -11,7 +11,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout code
-        uses: actions/checkout@v2
+        uses: actions/checkout@v4
 
         # with:
         #   fetch-depth: 0
diff --git a/.github/workflows/release.yaml b/.github/workflows/release.yaml
index c1552f27..3d0d7a76 100644
--- a/.github/workflows/release.yaml
+++ b/.github/workflows/release.yaml
@@ -11,7 +11,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout code
-        uses: actions/checkout@v2
+        uses: actions/checkout@v4
 
       - name: Set up Python
         uses: actions/setup-python@v2
diff --git a/.github/workflows/testrelease.yaml b/.github/workflows/testrelease.yaml
index b281772a..632cbff2 100644
--- a/.github/workflows/testrelease.yaml
+++ b/.github/workflows/testrelease.yaml
@@ -11,7 +11,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout code
-        uses: actions/checkout@v2
+        uses: actions/checkout@v4
 
       - name: Set up Python
         uses: actions/setup-python@v2
diff --git a/.github/workflows/validate.yml b/.github/workflows/validate.yml
index 53a3cd20..0764d6ae 100644
--- a/.github/workflows/validate.yml
+++ b/.github/workflows/validate.yml
@@ -20,7 +20,7 @@ jobs:
 
     steps:
       - name: Checkout code
-        uses: actions/checkout@v2
+        uses: actions/checkout@v4
 
       - name: Set up Python 3.10
         uses: actions/setup-python@v2
@@ -54,7 +54,7 @@ jobs:
 
     steps:
       - name: Checkout code
-        uses: actions/checkout@v2
+        uses: actions/checkout@v4
         with:
           fetch-depth: 0