diff --git a/.github/workflows/prepare-release.yml b/.github/workflows/prepare-release.yml
index 68d0f98ba..364eeae16 100644
--- a/.github/workflows/prepare-release.yml
+++ b/.github/workflows/prepare-release.yml
@@ -5,9 +5,15 @@ on:
   workflow_dispatch:
     inputs:
       release_type:
-        description: 'Type of release. patch or minor (major if breaking)'
+        description: Type of release. patch or minor (major if breaking)
         required: true
-        default: 'patch'
+        type: choice
+        default: patch
+        options:
+          - patch
+          - minor
+          - major
+
 
 jobs:
   agent-release-notes: