diff --git a/.github/workflows/miri.yml b/.github/workflows/miri.yml
index 8894dbace..73b38dec9 100644
--- a/.github/workflows/miri.yml
+++ b/.github/workflows/miri.yml
@@ -7,6 +7,7 @@ on:
       - 'auto'
       - 'try'
   pull_request:
+    types: [opened, synchronize, reopened, ready_for_review]
     branches:
       - 'master'
   schedule: