diff --git a/.github/workflows/e2e-nightly-35x.yml b/.github/workflows/e2e-nightly-35x.yml
index b78812e92..13d4b3dc8 100644
--- a/.github/workflows/e2e-nightly-35x.yml
+++ b/.github/workflows/e2e-nightly-35x.yml
@@ -26,6 +26,8 @@ jobs:
           go-version: '1.17'
 
       - uses: actions/checkout@v2.3.4
+        with:
+          ref: 'v0.35.x'
 
       - name: Build
         working-directory: test/e2e