diff --git a/persistent-mongoDB.cabal b/persistent-mongoDB.cabal
--- a/persistent-mongoDB.cabal
+++ b/persistent-mongoDB.cabal
@@ -1,5 +1,5 @@
 name:            persistent-mongoDB
-version:         1.2.1.1
+version:         1.2.1.2
 license:         MIT
 license-file:    LICENSE
 author:          Greg Weber <greg@gregweber.info>
@@ -25,7 +25,7 @@
                    , bytestring         >= 0.9
                    , conduit            >= 0.5.3
                    , resourcet          >= 0.3
-                   , mongoDB            >= 1.3     && < 1.4
+                   , mongoDB            >= 1.3     && < 1.4.1
                    , bson               >= 0.2     && < 0.3
                    , network            >= 2.2.1.7
                    , cereal             >= 0.3.0.0
