diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index 900e208..f12cf26 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -32,7 +32,7 @@ jobs:
     runs-on: ubuntu-latest
     timeout-minutes: 15
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
       - name: Setup .NET (global.json)
         uses: actions/setup-dotnet@v5
       - name: Restore dependencies
diff --git a/.github/workflows/publish-docs.yml b/.github/workflows/publish-docs.yml
index 599934d..d493bff 100644
--- a/.github/workflows/publish-docs.yml
+++ b/.github/workflows/publish-docs.yml
@@ -32,7 +32,7 @@ jobs:
 
     steps:
       - name: Checkout repository
-        uses: actions/checkout@v5
+        uses: actions/checkout@v6
 
       - name: Set up Node.js
         uses: actions/setup-node@v6
diff --git a/.github/workflows/release.yml b/.github/workflows/release.yml
index 4e47c75..e64c3fa 100644
--- a/.github/workflows/release.yml
+++ b/.github/workflows/release.yml
@@ -21,7 +21,7 @@ jobs:
       id-token: write
     timeout-minutes: 15
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
 
       - name: Authenticate with Google Cloud
         uses: google-github-actions/auth@v3