diff --git a/ChangeLog.txt b/ChangeLog.txt
index a0cac6aa45..ab1149bb14 100644
--- a/ChangeLog.txt
+++ b/ChangeLog.txt
@@ -14,6 +14,10 @@ iOS Client
 Server
 -
 
+Version 5.13.1, 2023/05/22
+Server
+- Fixed regular expression in IP-address ban to prevent crash
+
 Version 5.13, 2023/05/08
 Default Qt Client
 - Reinitialize sound devices if active sound device is removed using WASAPI sound system