diff --git a/.github/workflows/deploy.yml b/.github/workflows/deploy.yml
index fbadde4..022408e 100644
--- a/.github/workflows/deploy.yml
+++ b/.github/workflows/deploy.yml
@@ -12,7 +12,7 @@ jobs:
     name: Build CodeHarborHub-tutorial
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
         with:
           fetch-depth: 0
       - uses: actions/setup-node@v4
diff --git a/.github/workflows/greetings.yml b/.github/workflows/greetings.yml
index 6a34356..a465e80 100644
--- a/.github/workflows/greetings.yml
+++ b/.github/workflows/greetings.yml
@@ -16,7 +16,7 @@ jobs:
 
     steps:
       - name: Check out repository
-        uses: actions/checkout@v4
+        uses: actions/checkout@v6
 
       - name: Greet first-time contributors
         id: greet
diff --git a/.github/workflows/issue_creation_workflow.yml b/.github/workflows/issue_creation_workflow.yml
index 45e4a9f..c1bbaff 100644
--- a/.github/workflows/issue_creation_workflow.yml
+++ b/.github/workflows/issue_creation_workflow.yml
@@ -10,7 +10,7 @@ jobs:
 
     steps:
       - name: Checkout repository
-        uses: actions/checkout@v4
+        uses: actions/checkout@v6
 
       - name: Set up Node.js
         uses: actions/setup-node@v4
diff --git a/.github/workflows/pr_creation_workflow.yml b/.github/workflows/pr_creation_workflow.yml
index acf5438..767c83d 100644
--- a/.github/workflows/pr_creation_workflow.yml
+++ b/.github/workflows/pr_creation_workflow.yml
@@ -10,7 +10,7 @@ jobs:
 
     steps:
       - name: Checkout repository
-        uses: actions/checkout@v4
+        uses: actions/checkout@v6
 
       - name: Set up Node.js
         uses: actions/setup-node@v4
diff --git a/.github/workflows/schedule-sync.yml b/.github/workflows/schedule-sync.yml
index 4e379a4..4ff6e14 100644
--- a/.github/workflows/schedule-sync.yml
+++ b/.github/workflows/schedule-sync.yml
@@ -19,7 +19,7 @@ jobs:
 
     steps:
       - name: Checkout repository
-        uses: actions/checkout@v4
+        uses: actions/checkout@v6
         
       - name: Calculate next Monday's date for title
         id: date
diff --git a/.github/workflows/test-deploy.yml b/.github/workflows/test-deploy.yml
index 22ab10b..1aa4110 100644
--- a/.github/workflows/test-deploy.yml
+++ b/.github/workflows/test-deploy.yml
@@ -12,7 +12,7 @@ jobs:
     name: Test deployment
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
         with:
           fetch-depth: 0
       - uses: actions/setup-node@v4