Updated changelog description
diff --git a/packages/flutter_markdown/CHANGELOG.md b/packages/flutter_markdown/CHANGELOG.md
index 57d27da..cf13b11 100644
--- a/packages/flutter_markdown/CHANGELOG.md
+++ b/packages/flutter_markdown/CHANGELOG.md
@@ -1,6 +1,8 @@
 ## 0.1.7
 
-* Updated environment sdk constraints
+* Updated environment sdk constraints to make the package
+  Dart 2.  As a result, usage of this version and higher 
+  requires a Dart 2 SDK.
 
 ## 0.1.6