diff --git a/.github/workflows/mypy.yml b/.github/workflows/mypy.yml
index 22ea66ca..321ffc95 100644
--- a/.github/workflows/mypy.yml
+++ b/.github/workflows/mypy.yml
@@ -1,9 +1,5 @@
 name: Mypy
-on:
-  push:
-    branches: [ main ]
-  pull_request:
-    branches: [ main ]
+on: workflow_dispatch
 
 jobs:
   mypy_py3: