diff --git a/.github/workflows/json-lint.yml b/.github/workflows/json-lint.yml
index caf4255..b93eac6 100644
--- a/.github/workflows/json-lint.yml
+++ b/.github/workflows/json-lint.yml
@@ -13,7 +13,7 @@ jobs:
     runs-on: ubuntu-latest
     timeout-minutes: 5
     steps:
-      - uses: actions/checkout@v6
+      - uses: actions/checkout@9c091bb21b7c1c1d1991bb908d89e4e9dddfe3e0 # v7
       - name: Validate JSON files
         run: |
           failed=0