diff --git a/.github/workflows/branch-deployment.yml b/.github/workflows/branch-deployment.yml
index ffa98bbaa..e005ebd9e 100644
--- a/.github/workflows/branch-deployment.yml
+++ b/.github/workflows/branch-deployment.yml
@@ -82,7 +82,7 @@ jobs:
     
     steps:
       - name: Checkout repository
-        uses: actions/checkout@v5
+        uses: actions/checkout@v6
         with:
           ref: ${{ github.event.inputs.branch || github.head_ref || github.ref }}
           fetch-depth: 0
diff --git a/.github/workflows/code-quality.yml b/.github/workflows/code-quality.yml
index 7ca1a46d5..a93489a94 100644
--- a/.github/workflows/code-quality.yml
+++ b/.github/workflows/code-quality.yml
@@ -42,7 +42,7 @@ jobs:
     
     steps:
     - name: Checkout code
-      uses: actions/checkout@v5
+      uses: actions/checkout@v6
 
     - name: Setup Node.js
       uses: actions/setup-node@v6
@@ -280,7 +280,7 @@ jobs:
     
     steps:
     - name: Checkout code
-      uses: actions/checkout@v5
+      uses: actions/checkout@v6
 
     - name: Setup Node.js
       uses: actions/setup-node@v6
diff --git a/.github/workflows/generate-service-table.yml b/.github/workflows/generate-service-table.yml
index 71f9cb730..303973454 100644
--- a/.github/workflows/generate-service-table.yml
+++ b/.github/workflows/generate-service-table.yml
@@ -38,7 +38,7 @@ jobs:
     
     steps:
     - name: Checkout repository
-      uses: actions/checkout@v5
+      uses: actions/checkout@v6
       with:
         token: ${{ secrets.GITHUB_TOKEN }}
         ref: ${{ github.head_ref || github.ref_name }}
diff --git a/.github/workflows/landing-page-deployment.yml b/.github/workflows/landing-page-deployment.yml
index 82c476cac..15cc37a31 100644
--- a/.github/workflows/landing-page-deployment.yml
+++ b/.github/workflows/landing-page-deployment.yml
@@ -65,7 +65,7 @@ jobs:
     
     steps:
       - name: Checkout source branch
-        uses: actions/checkout@v5
+        uses: actions/checkout@v6
         with:
           ref: ${{ github.event.inputs.source_branch || 'main' }}
           fetch-depth: 0
diff --git a/.github/workflows/mcp-deployment.yml b/.github/workflows/mcp-deployment.yml
index c736e4ecf..8e492d2ce 100644
--- a/.github/workflows/mcp-deployment.yml
+++ b/.github/workflows/mcp-deployment.yml
@@ -49,7 +49,7 @@ jobs:
     
     steps:
       - name: Checkout code
-        uses: actions/checkout@v5
+        uses: actions/checkout@v6
         with:
           ref: ${{ inputs.branch || github.ref }}
       
diff --git a/.github/workflows/pr-security-check.yml b/.github/workflows/pr-security-check.yml
index aa6e762a6..dc10c80f2 100644
--- a/.github/workflows/pr-security-check.yml
+++ b/.github/workflows/pr-security-check.yml
@@ -36,7 +36,7 @@ jobs:
     
     steps:
       - name: Checkout code
-        uses: actions/checkout@v5
+        uses: actions/checkout@v6
 
       - name: Setup Node.js
         uses: actions/setup-node@v6