diff --git a/apiary-mongoDB.cabal b/apiary-mongoDB.cabal
--- a/apiary-mongoDB.cabal
+++ b/apiary-mongoDB.cabal
@@ -1,5 +1,5 @@
 name:                apiary-mongoDB
-version:             1.0.0
+version:             1.1.0
 synopsis:            mongoDB support for apiary web framework.
 -- description:
 license:             MIT
@@ -11,7 +11,7 @@
 copyright:           (c) 2014 Hirotomo Moriwaki
 category:            Web
 build-type:          Simple
-stability:           experimental
+stability:           stable
 -- extra-source-files:  
 cabal-version:       >=1.10
 
@@ -19,7 +19,7 @@
   exposed-modules:     Web.Apiary.MongoDB
   other-modules:       
   build-depends:       base               >=4.6   && <4.8
-                     , apiary             >=1.0   && <1.1
+                     , apiary             >=1.1   && <1.2
                      , mongoDB            >=2.0   && <2.1
                      , resource-pool      >=0.2   && <0.3
                      , data-default-class >=0.0   && <0.1
diff --git a/src/Web/Apiary/MongoDB.hs b/src/Web/Apiary/MongoDB.hs
--- a/src/Web/Apiary/MongoDB.hs
+++ b/src/Web/Apiary/MongoDB.hs
@@ -48,6 +48,7 @@
 type MongoQuery = MongoDB.Query
 
 data MongoDB = MongoDB (Pool Pipe) MongoDBConfig
+instance Extension MongoDB
 
 data MongoDBConfig = MongoDBConfig
     { mongoDBTimeout     :: Secs