diff --git a/.github/workflows/deploy.yaml b/.github/workflows/deploy.yaml
index 62c7140f..1072dc19 100644
--- a/.github/workflows/deploy.yaml
+++ b/.github/workflows/deploy.yaml
@@ -11,7 +11,7 @@ jobs:
     runs-on: ubuntu-18.04
     name: Deploy
     steps:
-      - uses: actions/checkout@master
+      - uses: actions/checkout@v1
       - name: Setup Ruby
         uses: actions/setup-ruby@v1
         with: