diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 084f4ce..8658efe 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -11,7 +11,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout
-        uses: actions/checkout@v4
+        uses: actions/checkout@v5
 
       - name: Setup pnpm
         uses: pnpm/action-setup@v4
@@ -35,7 +35,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout
-        uses: actions/checkout@v4
+        uses: actions/checkout@v5
 
       - name: Setup pnpm
         uses: pnpm/action-setup@v4
@@ -56,7 +56,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout
-        uses: actions/checkout@v4
+        uses: actions/checkout@v5
 
       - name: Setup pnpm
         uses: pnpm/action-setup@v4
diff --git a/.github/workflows/claude-code-review.yml b/.github/workflows/claude-code-review.yml
index 2d32b34..6336cd0 100644
--- a/.github/workflows/claude-code-review.yml
+++ b/.github/workflows/claude-code-review.yml
@@ -24,7 +24,7 @@ jobs:
     
     steps:
       - name: Checkout repository
-        uses: actions/checkout@v4
+        uses: actions/checkout@v5
         with:
           fetch-depth: 1
 
diff --git a/.github/workflows/claude.yml b/.github/workflows/claude.yml
index ee686eb..d68d6a3 100644
--- a/.github/workflows/claude.yml
+++ b/.github/workflows/claude.yml
@@ -26,7 +26,7 @@ jobs:
       actions: read # Required for Claude to read CI results on PRs
     steps:
       - name: Checkout repository
-        uses: actions/checkout@v4
+        uses: actions/checkout@v5
         with:
           fetch-depth: 1
 
diff --git a/.github/workflows/deploy-docs.yml b/.github/workflows/deploy-docs.yml
index d394f78..ac1f82f 100644
--- a/.github/workflows/deploy-docs.yml
+++ b/.github/workflows/deploy-docs.yml
@@ -20,7 +20,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout
-        uses: actions/checkout@v4
+        uses: actions/checkout@v5
 
       - name: Setup pnpm
         uses: pnpm/action-setup@v4
diff --git a/.github/workflows/release.yml b/.github/workflows/release.yml
index 2f15eaf..2758335 100644
--- a/.github/workflows/release.yml
+++ b/.github/workflows/release.yml
@@ -17,7 +17,7 @@ jobs:
       id-token: write
     steps:
       - name: Checkout
-        uses: actions/checkout@v4
+        uses: actions/checkout@v5
 
       - name: Setup pnpm
         uses: pnpm/action-setup@v4