diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index fc4bb6e3..4e584be3 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -27,7 +27,7 @@ jobs:
       JVM_OPTS:  -Xms2048M -Xmx2048M -Xss6M -XX:ReservedCodeCacheSize=256M
     steps:
     - name: Checkout
-      uses: actions/checkout@v5
+      uses: actions/checkout@v6
     - name: Setup JDK
       uses: actions/setup-java@v5
       with:
diff --git a/.github/workflows/format.yml b/.github/workflows/format.yml
index 48daaa50..473bb169 100644
--- a/.github/workflows/format.yml
+++ b/.github/workflows/format.yml
@@ -12,7 +12,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout current branch (full)
-        uses: actions/checkout@v5
+        uses: actions/checkout@v6
         with:
           fetch-depth: 0
           persist-credentials: false