diff --git a/.github/workflows/prepare-release.yml b/.github/workflows/prepare-release.yml
index e2b69149fc..a47a127fec 100644
--- a/.github/workflows/prepare-release.yml
+++ b/.github/workflows/prepare-release.yml
@@ -16,6 +16,7 @@ on:
           Whether this is a hotfix release.
         required: false
         default: false
+        type: boolean
 
 permissions:
   contents: write