diff --git a/.github/workflows/black_check.yml b/.github/workflows/black_check.yml
index a36b5f2..076e238 100644
--- a/.github/workflows/black_check.yml
+++ b/.github/workflows/black_check.yml
@@ -4,7 +4,7 @@
 # https://github.com/cclauss/autoblack
 
 name: black
-on: [push, pull_request]
+on: [pull_request]
 jobs:
   build:
     runs-on: ubuntu-latest