diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index ec8c465..7fade09 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -17,7 +17,7 @@ jobs:
 
     steps:
     - name: Checkout code
-      uses: actions/checkout@v4
+      uses: actions/checkout@v6
 
     - name: Set up Go
       uses: actions/setup-go@v6
@@ -55,7 +55,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
     - name: Checkout code
-      uses: actions/checkout@v4
+      uses: actions/checkout@v6
 
     - name: Set up Go
       uses: actions/setup-go@v6
@@ -74,7 +74,7 @@ jobs:
     needs: [test, lint]
     steps:
     - name: Checkout code
-      uses: actions/checkout@v4
+      uses: actions/checkout@v6
 
     - name: Set up Go
       uses: actions/setup-go@v6
diff --git a/.github/workflows/e2e-test.yml b/.github/workflows/e2e-test.yml
index b0a60fa..f234225 100644
--- a/.github/workflows/e2e-test.yml
+++ b/.github/workflows/e2e-test.yml
@@ -18,7 +18,7 @@ jobs:
     
     steps:
       - name: Checkout code
-        uses: actions/checkout@v4
+        uses: actions/checkout@v6
       
       - name: Setup Go
         uses: actions/setup-go@v6
diff --git a/.github/workflows/release.yml b/.github/workflows/release.yml
index 63d910f..cce5bea 100644
--- a/.github/workflows/release.yml
+++ b/.github/workflows/release.yml
@@ -15,7 +15,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
     - name: Checkout code
-      uses: actions/checkout@v4
+      uses: actions/checkout@v6
       with:
         fetch-depth: 0
 
@@ -53,7 +53,7 @@ jobs:
     if: ${{ !contains(github.ref_name, '-') }}
     steps:
     - name: Checkout code
-      uses: actions/checkout@v4
+      uses: actions/checkout@v6
 
     - name: Sync wtp.rb template to Homebrew tap
       run: scripts/sync-homebrew-formula.sh