diff --git a/dev-docs/bidders/smartrtb.md b/dev-docs/bidders/smartrtb.md
index df674f69d8..f81e8172ad 100644
--- a/dev-docs/bidders/smartrtb.md
+++ b/dev-docs/bidders/smartrtb.md
@@ -9,6 +9,7 @@ userIds: britepoolId, criteo, id5Id, identityLink, liveIntentId, netId, parrable
 pbjs: true
 pbs: true
 pbs_app_supported: true
+pbjs_version_notes: not in 5.x
 ---
 
 ### Registration