diff --git a/.github/workflows/claude-code-review.yml b/.github/workflows/claude-code-review.yml
index 62d5f709..abd1b9b1 100644
--- a/.github/workflows/claude-code-review.yml
+++ b/.github/workflows/claude-code-review.yml
@@ -27,7 +27,7 @@ jobs:
 
     steps:
       - name: Checkout repository
-        uses: actions/checkout@v5
+        uses: actions/checkout@v6
         with:
           fetch-depth: 1
 
diff --git a/.github/workflows/claude.yml b/.github/workflows/claude.yml
index e74748b9..e494cadc 100644
--- a/.github/workflows/claude.yml
+++ b/.github/workflows/claude.yml
@@ -30,7 +30,7 @@ jobs:
       actions: read # Required for Claude to read CI results on PRs
     steps:
       - name: Checkout repository
-        uses: actions/checkout@v5
+        uses: actions/checkout@v6
         with:
           fetch-depth: 1
 
diff --git a/.github/workflows/deploy.yml b/.github/workflows/deploy.yml
index 7e7976ee..9476c037 100644
--- a/.github/workflows/deploy.yml
+++ b/.github/workflows/deploy.yml
@@ -8,7 +8,7 @@ jobs:
     name: JavaScript Tests
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
       - uses: pnpm/action-setup@v4
         name: Install pnpm
       - uses: actions/setup-node@v6
@@ -36,7 +36,7 @@ jobs:
           go-version: 1.25.4
           check-latest: true
       - name: Checkout code
-        uses: actions/checkout@v5
+        uses: actions/checkout@v6
       - name: Install Protoc
         uses: arduino/setup-protoc@v3
       - name: Install gRPC and Go
@@ -50,7 +50,7 @@ jobs:
     timeout-minutes: 60
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
       - uses: pnpm/action-setup@v4
         name: Install pnpm
       - uses: actions/setup-node@v6
@@ -107,7 +107,7 @@ jobs:
           username: ${{ github.actor }}
           password: ${{ secrets.GITHUB_TOKEN }}
       - name: Checkout
-        uses: actions/checkout@v5
+        uses: actions/checkout@v6
       - name: Docker meta
         id: meta
         uses: docker/metadata-action@v5
@@ -141,7 +141,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout code
-        uses: actions/checkout@v5
+        uses: actions/checkout@v6
         with:
           fetch-depth: 0
       - uses: pnpm/action-setup@v4
diff --git a/.github/workflows/dev.yml b/.github/workflows/dev.yml
index 9eb9b707..4f2a6539 100644
--- a/.github/workflows/dev.yml
+++ b/.github/workflows/dev.yml
@@ -26,7 +26,7 @@ jobs:
           username: ${{ github.actor }}
           password: ${{ secrets.GITHUB_TOKEN }}
       - name: Checkout
-        uses: actions/checkout@v5
+        uses: actions/checkout@v6
       - name: Docker meta
         id: meta
         uses: docker/metadata-action@v5
diff --git a/.github/workflows/pages.yml b/.github/workflows/pages.yml
index df207171..16d000e8 100644
--- a/.github/workflows/pages.yml
+++ b/.github/workflows/pages.yml
@@ -24,7 +24,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout
-        uses: actions/checkout@v5
+        uses: actions/checkout@v6
         with:
           fetch-depth: 0 # Not needed if lastUpdated is not enabled
       - uses: pnpm/action-setup@v2
diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
index 577b3ad2..4be41db4 100644
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@@ -11,7 +11,7 @@ jobs:
     name: Typecheck
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
       - uses: pnpm/action-setup@v4
         name: Install pnpm
       - uses: actions/setup-node@v6
@@ -33,7 +33,7 @@ jobs:
     name: JavaScript Tests
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
       - uses: pnpm/action-setup@v4
         name: Install pnpm
       - run: corepack enable
@@ -57,7 +57,7 @@ jobs:
           go-version: "1.25.4"
           check-latest: true
       - name: Checkout code
-        uses: actions/checkout@v5
+        uses: actions/checkout@v6
       - name: Install Protoc
         uses: arduino/setup-protoc@v3
         with:
@@ -73,7 +73,7 @@ jobs:
     name: Go Staticcheck
     steps:
       - name: Checkout code
-        uses: actions/checkout@v5
+        uses: actions/checkout@v6
       - name: Setup Go
         uses: actions/setup-go@v6
         with:
@@ -90,7 +90,7 @@ jobs:
     timeout-minutes: 60
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
       - uses: pnpm/action-setup@v4
         name: Install pnpm
       - uses: actions/setup-node@v6