diff --git a/.github/workflows/autoblack.yml b/.github/workflows/autoblack.yml
index 10d2ea26..35380607 100644
--- a/.github/workflows/autoblack.yml
+++ b/.github/workflows/autoblack.yml
@@ -1,8 +1,11 @@
 name: Check / auto apply Black
-on: [pull_request]
+on:
+  push:
+      branches:
+          - dev
 jobs:
   black:
-    name: runner / black
+    name: Check / auto apply black
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v2