diff --git a/workflow-parser/testdata/reader/events-mapping-all.yml b/workflow-parser/testdata/reader/events-mapping-all.yml
index 94b26ef6..480b790b 100644
--- a/workflow-parser/testdata/reader/events-mapping-all.yml
+++ b/workflow-parser/testdata/reader/events-mapping-all.yml
@@ -133,6 +133,8 @@ on:
       - review_request_removed
       - auto_merge_enabled
       - auto_merge_disabled
+      - milestoned
+      - demilestoned
   pull_request_comment:
     types:
       - created