diff --git a/.github/workflows/delete-workflow-runs.yml b/.github/workflows/delete-workflow-runs.yml
index 302d8d7..a8124a5 100644
--- a/.github/workflows/delete-workflow-runs.yml
+++ b/.github/workflows/delete-workflow-runs.yml
@@ -42,7 +42,6 @@ on:
           - success
       dry_run:
         description: 'Logs simulated changes, no deletions are performed'
-        type: boolean
         required: false
 
 jobs: