diff --git a/CHANGELOG.markdown b/CHANGELOG.markdown
--- a/CHANGELOG.markdown
+++ b/CHANGELOG.markdown
@@ -1,3 +1,10 @@
+0.5.1
+=====
+
+  * Updated documentation to reflect the changes in `0.5.0`.
+
+  * Dropped `void` and `contravariant` dependencies
+
 0.5.0
 =====
 
diff --git a/README.markdown b/README.markdown
--- a/README.markdown
+++ b/README.markdown
@@ -55,8 +55,9 @@
 
 To send constructed request use `lastfm`:
 
-    >>> lastfm $ Tag.search <*> tag "russian-folk" <* limit 10 <*> apiKey "29effec263316a1f8a97f753caaa83e0" <* json
-    Just (Object fromList [("results",Object fromList [("tagmatches", ...
+    >>> con <- newConnection
+    >>> lastfm con $ Tag.search <*> tag "russian-folk" <* limit 10 <*> apiKey "29effec263316a1f8a97f753caaa83e0" <* json
+    Right (Object (fromList [("results",Object (fromList [("tagmatches", ...
 
 [Wiki][liblastfm/wiki] describes how to parse responses.
 
diff --git a/liblastfm.cabal b/liblastfm.cabal
--- a/liblastfm.cabal
+++ b/liblastfm.cabal
@@ -1,5 +1,5 @@
 name:          liblastfm
-version:       0.5.0
+version:       0.5.1
 synopsis:      Lastfm API interface
 license:       MIT
 license-file:  LICENSE
@@ -41,7 +41,6 @@
     , bytestring
     , cereal
     , containers      >= 0.5
-    , contravariant
     , crypto-api
     , http-client     >= 0.3
     , http-client-tls >= 0.2
@@ -50,7 +49,6 @@
     , pureMD5
     , semigroups
     , text
-    , void
     , xml-conduit     >= 1.1
   hs-source-dirs:
    src
@@ -147,7 +145,6 @@
     , bytestring
     , cereal
     , containers
-    , contravariant
     , crypto-api
     , hspec
     , hspec-expectations-lens >= 0.3.0.0
@@ -159,7 +156,6 @@
     , profunctors
     , pureMD5
     , text
-    , void
     , xml-conduit
     , xml-html-conduit-lens   >= 0.3
   hs-source-dirs:
diff --git a/src/Network/Lastfm/Authentication.hs b/src/Network/Lastfm/Authentication.hs
--- a/src/Network/Lastfm/Authentication.hs
+++ b/src/Network/Lastfm/Authentication.hs
@@ -18,13 +18,14 @@
 -- >>> import Network.Lastfm
 -- >>> import Network.Lastfm.Authentication
 -- >>> :set -XOverloadedStrings
--- >>> lastfm $ getToken <*> apiKey "__API_KEY__" <* json
--- Just (Object fromList [("token",String "__TOKEN__")])
+-- >>> con <- newConnection
+-- >>> lastfm con $ getToken <*> apiKey "__API_KEY__" <* json
+-- Right (Object (fromList [("token",String "__TOKEN__")]))
 -- >>> putStrLn . link $ apiKey "__API_KEY__" <* token "__TOKEN__"
 -- http://www.last.fm/api/auth/?api_key=__API_KEY__&token=__TOKEN__
 -- >>> -- Click that link ^^^
--- >>> lastfm . sign "__SECRET__" $ getSession <*> token "__TOKEN__" <*> apiKey "__API_KEY__"  <* json
--- Just (Object fromList [("session",Object fromList [("name",String "__USER__"),("subscriber",String "0"),("key",String "__SESSION_KEY__")])])
+-- >>> lastfm con $ sign "__SECRET__" $ getSession <*> token "__TOKEN__" <*> apiKey "__API_KEY__"  <* json
+-- Right (Object (fromList [("session",Object (fromList [("subscriber",String "0"),("key",String "__SESSION_KEY__"),("name",String "__USER__")]))]))
 module Network.Lastfm.Authentication
   ( -- * Helpers
     getToken, getSession, getMobileSession
diff --git a/src/Network/Lastfm/Internal.hs b/src/Network/Lastfm/Internal.hs
--- a/src/Network/Lastfm/Internal.hs
+++ b/src/Network/Lastfm/Internal.hs
@@ -29,7 +29,6 @@
 import           Control.Applicative
 import           Data.ByteString (ByteString)
 import           Data.Foldable (Foldable(..))
-import           Data.Functor.Contravariant (Contravariant(..))
 import           Data.Map.Strict (Map)
 import qualified Data.Map.Strict as M
 import           Data.Monoid
@@ -38,7 +37,6 @@
 import qualified Data.Text as T
 import qualified Data.Text.Encoding as T
 import           Data.Traversable (Traversable(..))
-import           Data.Void (absurd)
 import           Network.URI (escapeURIChar, isUnreserved)
 
 
@@ -73,10 +71,6 @@
   fmap f (Request x) = Request (fmap f x)
   {-# INLINE fmap #-}
 
-instance Contravariant (Request f) where
-  contramap f (Request x) = Request (contramap f x)
-  {-# INLINE contramap #-}
-
 instance Applicative (Request f) where
   pure x = Request (pure x)
   Request f <*> Request x = Request (f <*> x)
@@ -91,9 +85,8 @@
   {-# INLINE traverse #-}
 
 
--- | Copypaste from "Control.Lens.Internal.Getter"
-coerce :: (Contravariant f, Functor f) => f a -> f b
-coerce = fmap absurd . contramap absurd
+coerce :: Request f a -> Request f b
+coerce (Request (Const x)) = Request (Const x)
 {-# INLINE coerce #-}
 
 
diff --git a/src/Network/Lastfm/Response.hs b/src/Network/Lastfm/Response.hs
--- a/src/Network/Lastfm/Response.hs
+++ b/src/Network/Lastfm/Response.hs
@@ -13,6 +13,8 @@
     -- * Perform requests
   , Connection
   , withConnection
+  , newConnection
+  , closeConnection
   , lastfm
   , lastfm_
   , Supported
@@ -29,7 +31,7 @@
   ) where
 
 import           Control.Applicative
-import           Control.Exception (SomeException(..), Exception(..), catch)
+import           Control.Exception (SomeException(..), Exception(..), bracket, catch)
 import           Crypto.Classes (hash')
 import           Data.Aeson ((.:), Value(..), decode)
 import           Data.Aeson.Types (parseMaybe)
@@ -207,7 +209,15 @@
 -- | Creating an HTTPS connection manager is expensive; it's advised to use
 -- a single 'Connection' for all communications with last.fm
 withConnection :: (Connection -> IO a) -> IO a
-withConnection f = Http.withManager Http.tlsManagerSettings (f . Connection)
+withConnection = bracket newConnection closeConnection
+
+-- | Create a 'Connection'
+newConnection :: IO Connection
+newConnection = Connection <$> Http.newManager Http.tlsManagerSettings
+
+-- | Close a 'Connection'
+closeConnection :: Connection -> IO ()
+closeConnection (Connection man) = Http.closeManager man
 
 -- | Perform the 'Request' and parse the response
 lastfm :: Supported f r => Connection -> Request f Ready -> IO (Either LastfmError r)