diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 1f5941bc..f0d346dd 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -11,7 +11,7 @@ jobs:
       runs-on: ubuntu-latest
       steps:
          - name: Checkout code
-           uses: actions/checkout@v6
+           uses: actions/checkout@v6.0.2
 
          #      - name: Set up Python
          #        uses: actions/setup-python@v5
@@ -85,7 +85,7 @@ jobs:
                - tests/test_command_consistency.py tests/test_mcp_cli_init.py tests/test_mcp_cli_main_entry.py
       steps:
          - name: Checkout code
-           uses: actions/checkout@v6
+           uses: actions/checkout@v6.0.2
 
          #      - name: Set up Python
          #        uses: actions/setup-python@v5
@@ -119,7 +119,7 @@ jobs:
       runs-on: ubuntu-latest
       steps:
          - name: Checkout code
-           uses: actions/checkout@v6
+           uses: actions/checkout@v6.0.2
 
          #      - name: Set up Python
          #        uses: actions/setup-python@v5