diff --git a/.github/workflows/deploy.yml b/.github/workflows/deploy.yml
index 9a0ba4a4..8cace408 100644
--- a/.github/workflows/deploy.yml
+++ b/.github/workflows/deploy.yml
@@ -9,7 +9,6 @@ on:
         description: 'Commit, tag or branch name to deploy'
         required: true
         type: string
-        default: 'main'
       environment:
         description: 'Environment to deploy to'
         required: true