diff --git a/src/Network/Api/TextLocal.hs b/src/Network/Api/TextLocal.hs
--- a/src/Network/Api/TextLocal.hs
+++ b/src/Network/Api/TextLocal.hs
@@ -30,15 +30,15 @@
 -- Credential for making request to textLocal server.
 data Credential
     = ApiKey ByteString
-    | UserHash ByteString -- ^ Email address
-               ByteString -- ^ Secure hash that is found within the messenger.
+    | UserHash ByteString -- Email address
+               ByteString -- Secure hash that is found within the messenger.
 
 baseUrl :: String
 baseUrl = "https://api.textlocal.in/"
 
--- Create 'Credential' for textLocal.
+-- | Create 'Credential' for textLocal.
 createApiKey
-    :: ByteString -- ^ api key
+    :: ByteString -- Api key
     -> Credential
 createApiKey apiKey = ApiKey apiKey
 
@@ -49,12 +49,12 @@
 formCred (UserHash user hash) = [partBS "username" user, partBS "hash" hash]
 
 data SMSSettings = SMSSettings
-    { settingsSender :: ByteString -- ^ Sender name must be 6 alpha
+    { settingsSender :: ByteString -- Sender name must be 6 alpha
                                    -- characters and should be
                                    -- pre-approved by Textlocal. In
                                    -- the absence of approved sender
                                    -- names, use the default 'TXTLCL'
-    , settingsMessage :: ByteString -- ^ The message content. This
+    , settingsMessage :: ByteString -- The message content. This
                                     -- parameter should be no longer
                                     -- than 766 characters. The
                                     -- message also must be URL
diff --git a/src/Network/Api/Types.hs b/src/Network/Api/Types.hs
--- a/src/Network/Api/Types.hs
+++ b/src/Network/Api/Types.hs
@@ -4,7 +4,8 @@
 
 import Data.Text (Text)
 import Data.Aeson ((.:), Value(..), FromJSON(..), (.:?))
-import Control.Applicative (empty)
+import Control.Applicative (empty, (<*>))
+import Data.Functor ((<$>))
 
 data Error = Error
     { ecode :: Int
diff --git a/textlocal.cabal b/textlocal.cabal
--- a/textlocal.cabal
+++ b/textlocal.cabal
@@ -1,5 +1,5 @@
 name:                textlocal
-version:             0.1.0.0
+version:             0.1.0.1
 synopsis:            Haskell wrapper for textlocal SMS gateway
 description:         Please see README.md
 homepage:            https://github.com/just-chow/textlocal
@@ -18,7 +18,7 @@
   hs-source-dirs:      src
   exposed-modules:     Network.Api.Types,
                        Network.Api.TextLocal
-  build-depends:       base >= 4.7 && < 4.9,
+  build-depends:       base >= 4.6 && < 5,
                        text, 
                        bytestring,
                        unix-time,