diff --git a/kraken.cabal b/kraken.cabal
--- a/kraken.cabal
+++ b/kraken.cabal
@@ -1,5 +1,5 @@
 name:                kraken
-version:             0.0.1
+version:             0.0.2
 
 synopsis:            Kraken.io API client
 description:
@@ -33,7 +33,7 @@
      Network.Kraken
 
   build-depends:
-     base >=4.5 && <4.9
+     base >=4.5 && <4.10
    , bytestring
    , http-client
    , http-client-tls
diff --git a/src/Network/Kraken.hs b/src/Network/Kraken.hs
--- a/src/Network/Kraken.hs
+++ b/src/Network/Kraken.hs
@@ -12,7 +12,9 @@
     ) where
 
 
+import Control.Applicative
 import Control.Monad.Except
+
 import Data.ByteString (ByteString)
 import Data.ByteString.Lazy (toStrict)
 import Data.Aeson hiding (Success, Error)
@@ -22,6 +24,8 @@
 import Network.HTTP.Client hiding (Response)
 import Network.HTTP.Client.MultipartFormData
 import Network.HTTP.Client.TLS (tlsManagerSettings)
+
+import Prelude