diff --git a/.github/workflows/sample_build.yml b/.github/workflows/sample_build.yml
index 926b1215..f12b30e5 100644
--- a/.github/workflows/sample_build.yml
+++ b/.github/workflows/sample_build.yml
@@ -1,12 +1,7 @@
 name: Sample build
 
 on:
-  push: {}
-  pull_request:
-    branches:
-      # PRs from branches on the origin repo get a build from the 'push'
-      # trigger. So the pull_request trigger is limited to fork branches
-    - '**:**'
+  workflow_dispatch: {}
 
 jobs:
   build_wheels: