diff --git a/CHANGELOG.md b/CHANGELOG.md
index 8a14ba1c1..c0670abc8 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,4 +1,5 @@
 04.02.2020
+* Fixed bug that allowed bypassing blocked domain validation using punycode [#1142](https://github.com/internetee/registry/issues/1142)
 * SimpleIDN gem update to 0.0.9 [#1508](https://github.com/internetee/registry/pull/1508)
 
 31.01.2020