diff --git a/.github/workflows/unit-test.yml b/.github/workflows/unit-test.yml
index a3a80871a..0928a848d 100644
--- a/.github/workflows/unit-test.yml
+++ b/.github/workflows/unit-test.yml
@@ -1,10 +1,7 @@
 # This workflow builds and unit tests both main Java API and also build/data tools for metadata generation.
 
 name: Testing Java API
-on:
-  push:
-  pull_request:
-    types: [opened]
+on: pull_request
 jobs:
   java-test:
     runs-on: ubuntu-latest