diff --git a/CHANGELOG.md b/CHANGELOG.md
index f45412af..6a0b3e47 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -4,6 +4,7 @@
 * Add support for the `Patch` combinator
 * Support for `Accept`/`Content-type` headers and for the content-type aware combinators in *servant-0.3*
 * Export `toApplication` from `Servant.Server` (https://github.com/haskell-servant/servant-server/pull/29)
+* Support other Monads than just `EitherT (Int, String) IO` (https://github.com/haskell-servant/servant-server/pull/21)
 
 0.2.4
 -----