diff --git a/CHANGELOG.md b/CHANGELOG.md
index 9f929b6..a926a1e 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -17,6 +17,7 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 ### Changed
 - Type definitions serialised to ACI as `typedefs` field instead of `type_defs` to increase compatibility.
 - Check contracts and entrypoints modifiers when implementing interfaces.
+- Contracts can no longer be used as namespaces.
 ### Removed
 ### Fixed
 - Typechecker crashes if Chain.create or Chain.clone are used without arguments.