diff --git a/EPR-ATC-Simulator/release-note.md b/EPR-ATC-Simulator/release-note.md
index 30281720db01e1a8d668c8b93f894628b88b9e2f..81b1eeb425c099eedde4100d396f06dc34a509fd 100644
--- a/EPR-ATC-Simulator/release-note.md
+++ b/EPR-ATC-Simulator/release-note.md
@@ -1,13 +1,21 @@
 ---
 title: Release note
 subtitle: ATC Simulator
-toolversion: 1.3.3
-releasedate: 2020-03-18
+toolversion: 1.3.4
+releasedate: 2020-10-18
 author: Youn Cadoret
 function: Software Engineer
 customer: IHE Europe
 reference: KER1-RNO-IHE-ATC_SIMULATOR
 ---
+
+# 1.3.4
+_Release date: 2020-10-08_
+
+__Bug__
+* \[[ATCREPO-21](https://gazelle.ihe.net/jira/browse/ATCREPO-21)\] CH:ATC Simulator - Invalid EprDocumentTypeCode in Response
+
+
 # 1.3.3
 _Release date: 2020-03-18_