diff --git a/CHANGELOG.txt b/CHANGELOG.txt
index cbc62fb..4b7468b 100644
--- a/CHANGELOG.txt
+++ b/CHANGELOG.txt
@@ -6,6 +6,8 @@ Version 4.1 - in development
 
 - Dropped support for Python 2 and 3.4.
 - Move to Python 3.7 in Pipfile (so `pipenv install` creates a Python 3.7 virtualenv).
+- Fix [#129](https://github.com/sybrenstuvel/python-rsa/issues/129) Installing from source
+  gives UnicodeDecodeError.
 
 
 Version 4.0 - released 2018-09-16