diff --git a/CHANGELOG.md b/CHANGELOG.md
index 6547449..5288f3b 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,3 +1,7 @@
+## 0.21.0+1-dev
+
+* Updated one of observable's tests to comply with dart 2 voidness semantics
+
 ## 0.21.0
 
 ### Breaking Changes
@@ -62,10 +66,6 @@
 * Removed `Observable{List|Map}.NONE` (not Dart2 compatible).
 * Fix issue with type in `ObservableList._notifyListChange`. cl/182284033
 
-## 0.21.0+1-dev
-
-* Updated one of observable's tests to comply with dart 2 voidness semantics
-
 ## 0.20.4+3
 
 * Support the latest release of `pkg/quiver` (0.27).