diff --git a/.github/workflows/labeling-workflow.yml b/.github/workflows/labeling-workflow.yml
index 392558dab..7364a48ee 100644
--- a/.github/workflows/labeling-workflow.yml
+++ b/.github/workflows/labeling-workflow.yml
@@ -1,5 +1,7 @@
 name: Add Label
 
+# based on https://github.com/actions-ecosystem/action-add-labels
+
 on:
   issues:
     types: opened