diff --git a/.github/workflows/build_and_test.yml b/.github/workflows/build_and_test.yml
index 4876538..d3f96e1 100644
--- a/.github/workflows/build_and_test.yml
+++ b/.github/workflows/build_and_test.yml
@@ -15,7 +15,7 @@ jobs:
     steps:
     # Step 1: Check out the repository
     - name: Check out repository
-      uses: actions/checkout@v4
+      uses: actions/checkout@v6
 
     # Step 2: Set up Python
     - name: Set up Python
diff --git a/.github/workflows/build_docs.yml b/.github/workflows/build_docs.yml
index 4394dad..1717d85 100644
--- a/.github/workflows/build_docs.yml
+++ b/.github/workflows/build_docs.yml
@@ -14,7 +14,7 @@ jobs:
     steps:
       # Step 1: Check out the repository
       - name: Check out the repository
-        uses: actions/checkout@v4
+        uses: actions/checkout@v6
 
       # Step 2: Set up Python
       - name: Set up Python
diff --git a/.github/workflows/jekyll-gh-pages.yml b/.github/workflows/jekyll-gh-pages.yml
index b78e9fc..5474168 100644
--- a/.github/workflows/jekyll-gh-pages.yml
+++ b/.github/workflows/jekyll-gh-pages.yml
@@ -23,7 +23,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout
-        uses: actions/checkout@v4
+        uses: actions/checkout@v6
       - name: Setup Pages
         uses: actions/configure-pages@v5
       - name: Build with Jekyll
diff --git a/.github/workflows/python-publish.yml b/.github/workflows/python-publish.yml
index 4884dd7..5129742 100644
--- a/.github/workflows/python-publish.yml
+++ b/.github/workflows/python-publish.yml
@@ -21,7 +21,7 @@ jobs:
     runs-on: ubuntu-latest
 
     steps:
-    - uses: actions/checkout@v4
+    - uses: actions/checkout@v6
     - name: Set up Python
       uses: actions/setup-python@v5
       with: