diff --git a/CHANGELOG.md b/CHANGELOG.md
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -2,6 +2,11 @@
 All notable changes to this project will be documented in this file.
 This project adheres to [Package Versioning Policy](https://wiki.haskell.org/Package_versioning_policy).
 
+## [2.3.0.4] - 2018-02-11
+
+### Fixed
+- Benchmark's build
+
 ## [2.3.0.3] - 2018-02-10
 
 ### Fixed
diff --git a/mongoDB.cabal b/mongoDB.cabal
--- a/mongoDB.cabal
+++ b/mongoDB.cabal
@@ -1,5 +1,5 @@
 Name:           mongoDB
-Version:        2.3.0.3
+Version:        2.3.0.4
 Synopsis:       Driver (client) for MongoDB, a free, scalable, fast, document
                 DBMS
 Description:    This package lets you connect to MongoDB servers and
@@ -98,6 +98,7 @@
                     , base16-bytestring
                     , binary -any
                     , bson >= 0.3 && < 0.4
+                    , data-default-class -any
                     , text
                     , bytestring -any
                     , containers -any