diff --git a/CHANGELOG b/CHANGELOG
index 584550e..7c3b402 100644
--- a/CHANGELOG
+++ b/CHANGELOG
@@ -4,6 +4,9 @@ Format: Double ## for a version number followed by a space, ISO-Date, Semantic V
 Two empty lines before the next entry.
 External contributors notice at the end of the line: (LastName, FirstName / nick)
 
+## 2021-07-15 1.5.2
+pynsm2 library: Fixed a rare crash, where the hostname must be case sensitive but Pythons urlparse forced lower-case.
+
 ## 2021-03-19 1.5.1
 Web-URLs changed to https://new-session-manager.jackaudio.org and https://github.com/jackaudio/new-session-manager
 No codechanges.