diff --git a/.github/workflows/build-and-test-v3.yml b/.github/workflows/build-and-test-v3.yml
index ad773fb68..c3278f6e1 100644
--- a/.github/workflows/build-and-test-v3.yml
+++ b/.github/workflows/build-and-test-v3.yml
@@ -3,8 +3,12 @@ name: Build + Test v3
 on:
   pull_request:
     types: [opened, synchronize, reopened, ready_for_review]
+    branches:
+      - v3-alpha
   pull_request_review:
     types: [submitted]
+    branches:
+      - v3-alpha
 
 jobs:
   check_approval: