diff --git a/CHANGELOG.md b/CHANGELOG.md
index 3f141a8..655ef2c 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,4 +1,13 @@
-# 1.1.0
+# Changes
+
+## 1.2.0
+
+### ✨ Features and improvements
+
+- Generate individual Polygons rather than GeometryCollections when isoline features contain single
+  geometries
+
+## 1.1.0
 
 ### ✨ Features and improvements