diff --git a/atlassian-connect-core.cabal b/atlassian-connect-core.cabal
--- a/atlassian-connect-core.cabal
+++ b/atlassian-connect-core.cabal
@@ -10,7 +10,7 @@
 -- PVP summary:      +-+------- breaking API changes
 --                   | | +----- non-breaking API additions
 --                   | | | +--- code changes with no API change
-version:             0.5.0.0
+version:             0.5.0.1
 
 -- A short (one-line) description of the package.
 synopsis:            Atlassian Connect snaplet for the Snap Framework and helper code.
@@ -105,7 +105,7 @@
                        , http-media         == 0.4.*
                        , mtl                == 2.*
                        , snap               >= 0.13.3  && < 0.14
-                       , snap-core          >= 0.9     && < 0.10
+                       , snap-core          >= 0.9     && <= 1
                        , split              == 0.2.*
                        , text               >= 0.11    && < 1.3
                        , time               >= 1.1     && < 1.5
diff --git a/src/Snap/AtlassianConnect/HostRequest.hs b/src/Snap/AtlassianConnect/HostRequest.hs
--- a/src/Snap/AtlassianConnect/HostRequest.hs
+++ b/src/Snap/AtlassianConnect/HostRequest.hs
@@ -142,10 +142,12 @@
         expiryPeriod = 1
 
 responder :: FromJSON a => Int -> BL.ByteString -> Either ProductErrorResponse a
-responder 200 body = case eitherDecode body of
-   Right jsonResponse -> Right jsonResponse
-   Left err -> Left $ ProductErrorResponse 200 (T.pack $ "Could not parse the json response: " ++ show err)
-responder responseCode body = Left $ ProductErrorResponse responseCode (T.decodeUtf8 . BL.toStrict $ body)
+responder responseCode body 
+   | 200 <= responseCode && responseCode < 300 =
+      case eitherDecode body of
+         Right jsonResponse -> Right jsonResponse
+         Left err -> Left $ ProductErrorResponse responseCode (T.pack $ "Could not parse the json response: " ++ show err)
+   | otherwise = Left $ ProductErrorResponse responseCode (T.decodeUtf8 . BL.toStrict $ body)
 
 -- Wrapping this method for now. See: http://goo.gl/AZtRHZ
 setPostParams :: [(B.ByteString, B.ByteString)] -> Endo Request