diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index 381b7dc..caf946c 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -10,7 +10,7 @@ jobs:
   build:
     runs-on: ubuntu-24.04
     steps:
-    - uses: actions/checkout@v5
+    - uses: actions/checkout@v6
       with:
         submodules: 'true'
     - name: install build dependencies
diff --git a/.github/workflows/verify.yml b/.github/workflows/verify.yml
index 95b6a1e..2e7cf18 100644
--- a/.github/workflows/verify.yml
+++ b/.github/workflows/verify.yml
@@ -10,7 +10,7 @@ jobs:
     runs-on: ubuntu-latest  # container actions require GNU/Linux
     steps:
     - name: Checkout repository
-      uses: actions/checkout@v5
+      uses: actions/checkout@v6
       with:
         persist-credentials: false
         submodules: 'true'