diff --git a/router/CHANGES.txt b/router/CHANGES.txt
index b265a152..6538a0b1 100644
--- a/router/CHANGES.txt
+++ b/router/CHANGES.txt
@@ -6,6 +6,8 @@
 
 * Update regex to 1.3
 
+* Use bytestring instead of string
+
 ## [0.1.5] - 2019-05-15
 
 * Remove debug prints