diff --git a/upgrade/action.yaml b/upgrade/action.yaml
index 870b0227..c1ee0052 100644
--- a/upgrade/action.yaml
+++ b/upgrade/action.yaml
@@ -91,8 +91,7 @@ outputs:
     value: ${{ steps.cpr.outputs.pull-request-url }}
 
   pull-request-operation:
-    description:
-      The pull request operation performed by the action, `created`, `updated` or `closed`.
+    description: The pull request operation performed by the action, `created`, `updated` or `closed`.
     value: ${{ steps.cpr.outputs.pull-request-operation }}
 
   pull-request-head-sha: