diff --git a/.github/workflows/notify.yaml b/.github/workflows/notify.yaml
index e8472fa..02d10ec 100644
--- a/.github/workflows/notify.yaml
+++ b/.github/workflows/notify.yaml
@@ -5,6 +5,7 @@ on:
     inputs:
       needs:
         required: true
+        type: string
 jobs:
   notify:
     runs-on: gpu