diff --git a/src/Database/Tempodb/Types.hs b/src/Database/Tempodb/Types.hs
--- a/src/Database/Tempodb/Types.hs
+++ b/src/Database/Tempodb/Types.hs
@@ -8,10 +8,12 @@
 import           Control.Monad
 import           Control.Monad.Reader
 import           Data.Aeson
-import           Data.Aeson.Types      (Parser)
+import           Data.Aeson.Types
+import qualified Data.ByteString       as B
 import           Data.ByteString.Char8 as C8
 import           Data.Map              (Map)
 import qualified Data.Text             as T
+import           Data.Text.Encoding    (decodeUtf8, encodeUtf8)
 import           Data.Time
 import           Data.Typeable         (Typeable)
 import           Network.Http.Client
@@ -51,7 +53,7 @@
     , key        :: ByteString
     , name       :: ByteString
     , tags       :: [ByteString]
-    , attributes :: Map ByteString ByteString
+    , attributes :: Map T.Text T.Text
     } deriving (Show, Eq, Ord)
 
 instance FromJSON Series where
@@ -71,6 +73,14 @@
         , "tags"  .= t
         , "attributes" .= a
         ]
+
+instance ToJSON B.ByteString where
+    toJSON = String . decodeUtf8
+    {-# INLINE toJSON #-}
+
+instance FromJSON B.ByteString where
+    parseJSON = withText "ByteString" $ pure . encodeUtf8
+    {-# INLINE parseJSON #-}
 
 data Data = Data
     { uid       :: Maybe IdOrKey
diff --git a/src/Database/Tempodb/Util.hs b/src/Database/Tempodb/Util.hs
--- a/src/Database/Tempodb/Util.hs
+++ b/src/Database/Tempodb/Util.hs
@@ -8,7 +8,7 @@
 import           Control.Exception                   (Exception, throw)
 import           Data.ByteString.Char8               as C8
 import           Data.Typeable
-import           Network.Http.Client
+import qualified Network.Http.Client                 as C
 import           OpenSSL                             (withOpenSSL)
 import           System.IO.Streams                   (InputStream, write)
 
@@ -19,25 +19,25 @@
 rootpath = "/v1"
 
 -- | Run a constructed request.
-runRequest :: Request -> Maybe ByteString -> IO (Int,ByteString)
+runRequest :: C.Request -> Maybe ByteString -> IO (Int,ByteString)
 runRequest r b = withOpenSSL $ do
-    withConnection (establishConnection "https://api.tempo-db.com") go
+    C.withConnection (C.establishConnection "https://api.tempo-db.com") go
   where
     body = case b of
-      Nothing -> emptyBody
+      Nothing -> C.emptyBody
       Just v  -> (\o -> write (Just $ fromByteString v) o)
     go c = do
-        sendRequest c r body
-        receiveResponse c concatHandlerSt'
+        C.sendRequest c r body
+        C.receiveResponse c concatHandlerSt'
 
-concatHandlerSt' :: Response -> InputStream ByteString -> IO (StatusCode,ByteString)
+concatHandlerSt' :: C.Response -> InputStream ByteString -> IO (C.StatusCode, ByteString)
 concatHandlerSt' p i =
     if s >= 300
         then throw (HttpClientError s m)
-        else (concatHandler p i) >>= return . (s,)
+        else (C.concatHandler p i) >>= return . (s,)
   where
-    s = getStatusCode p
-    m = getStatusMessage p
+    s = C.getStatusCode p
+    m = C.getStatusMessage p
 
 data HttpClientError = HttpClientError Int ByteString
         deriving (Typeable)
diff --git a/tempodb.cabal b/tempodb.cabal
--- a/tempodb.cabal
+++ b/tempodb.cabal
@@ -1,5 +1,5 @@
 name:                tempodb
-version:             0.2.2.1
+version:             0.2.2.2
 synopsis:            A small Haskell wrapper around the TempoDB api.
 
 description:         TempoDB is a time-series database as-a-service with a
@@ -26,7 +26,7 @@
 library
   hs-source-dirs:      src
   cpp-options:         -Dcabal
-  ghc-options:         -Wall -fno-warn-type-defaults -fno-warn-unused-do-bind
+  ghc-options:         -Wall -fno-warn-type-defaults -fno-warn-orphans -fno-warn-unused-do-bind
 
   Build-Depends:
     base                      >= 4.6      && < 4.7,
@@ -35,10 +35,10 @@
     HTTP                      >= 4000.2.9 && < 4000.2.12,
     HsOpenSSL                 >= 0.10.4   && < 0.11,
     bytestring                >= 0.9.1    && < 0.11,
-    aeson                     >= 0.7.0.2  && < 0.7.1,
+    aeson                     >= 0.7.0.1  && < 0.7.0.2,
     io-streams                >= 1.1.2.0  && < 1.2,
     blaze-builder             >= 0.3.3.0  && < 0.4,
-    containers                >= 0.5.0.0  && < 0.6,
+    containers                >= 0.5.5.0  && < 0.6,
     time                      >= 1.4.0.1  && < 1.5,
     old-locale                >= 1.0.0.5  && < 1.0.1,
     text                      >= 0.11.3.1 && < 1.2