diff --git a/apiary-cookie.cabal b/apiary-cookie.cabal
--- a/apiary-cookie.cabal
+++ b/apiary-cookie.cabal
@@ -1,5 +1,5 @@
 name:                apiary-cookie
-version:             0.4.2.0
+version:             0.4.3.1
 x-revision:          1
 synopsis:            Cookie support for apiary web framework.
 description:
@@ -21,7 +21,7 @@
   exposed-modules:     Web.Apiary.Cookie
   other-modules:       Web.Apiary.Cookie.Internal
   other-extensions:    
-  build-depends:       base               >=4.7   && <4.8
+  build-depends:       base               >=4.5   && <4.8
                      , mtl                >=2.1   && <2.3
                      , transformers       >=0.3   && <0.5
                      , bytestring         >=0.10  && <0.11
diff --git a/src/Web/Apiary/Cookie/Internal.hs b/src/Web/Apiary/Cookie/Internal.hs
--- a/src/Web/Apiary/Cookie/Internal.hs
+++ b/src/Web/Apiary/Cookie/Internal.hs
@@ -19,7 +19,6 @@
 
 import Blaze.ByteString.Builder
 import qualified Data.ByteString as S
-import Data.Default.Class
 
 newtype Cookie = Cookie
     { key :: Key