diff --git a/.github/workflows/main.yml b/.github/workflows/main.yml
index ee219b9..0d12d98 100644
--- a/.github/workflows/main.yml
+++ b/.github/workflows/main.yml
@@ -2,6 +2,11 @@ name: Test Collective Taxonomy
 
 on:
   push:
+    branches:
+      - master
+  pull_request:
+    branches:
+      - master
   workflow_dispatch:
 
 jobs: