diff --git a/.github/workflows/docs.yml b/.github/workflows/docs.yml
index c7b84f3..31f3b9f 100644
--- a/.github/workflows/docs.yml
+++ b/.github/workflows/docs.yml
@@ -19,7 +19,7 @@ jobs:
   build:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
       - name: Setup .NET
         uses: actions/setup-dotnet@v4
         with:
diff --git a/.github/workflows/gemini-review.yml b/.github/workflows/gemini-review.yml
index 2831359..bcee1ca 100644
--- a/.github/workflows/gemini-review.yml
+++ b/.github/workflows/gemini-review.yml
@@ -39,7 +39,7 @@ jobs:
           permission-pull-requests: 'write'
 
       - name: 'Checkout repository'
-        uses: 'actions/checkout@8e8c483db84b4bee98b60c0593521ed34d9990e8' # ratchet:actions/checkout@v6
+        uses: 'actions/checkout@34e114876b0b11c390a56381ad16ebd13914f8d5' # ratchet:actions/checkout@v6
 
       - name: 'Run Gemini pull request review'
         uses: 'google-github-actions/run-gemini-cli@v0' # ratchet:exclude