diff --git a/README.md b/README.md
index fc1698a..3d6f53c 100644
--- a/README.md
+++ b/README.md
@@ -193,6 +193,7 @@ The following outputs can be accessed via `${{ steps.<step-id>.outputs }}` from
 | Name        | Type    | Description                                                     |
 |-------------|---------|-----------------------------------------------------------------|
 | `url`       | String  | Github.com URL for the release                                  |
+| `upload_url`| String  | URL for uploading assets to the release                         |
 
 
 #### environment variables