diff --git a/action.yml b/action.yml
index d86edeb9..581834b8 100644
--- a/action.yml
+++ b/action.yml
@@ -8,12 +8,14 @@ inputs:
   repo_token:
     description: 'GitHub token.'
     required: true
+    default: ${{ github.token }}
   file:
     description: 'Local file to upload.'
     required: true
   tag:
     description: 'Tag to use as a release.'
     required: true
+    default: ${{ github.ref }}
   asset_name:
     description: 'Name of the asset. When not provided will use the file name. Unused if file_glob is set to "true".'
   overwrite: