diff --git a/.github/workflows/main.yml b/.github/workflows/main.yml
index 7269701..cc9d58e 100644
--- a/.github/workflows/main.yml
+++ b/.github/workflows/main.yml
@@ -19,7 +19,7 @@ jobs:
   build:
     runs-on: ubuntu-20.04
     steps:
-    - uses: actions/checkout@v2
+    - uses: actions/checkout@v2.3.4
 
     - name: Build Manifests
       run: |