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:             0.5.0.1
+version:             0.5.1.0
 
 -- A short (one-line) description of the package.
 synopsis:            Atlassian Connect snaplet for the Snap Framework and helper code.
@@ -91,9 +91,9 @@
   -- other-extensions:    
   
   -- Other library packages from which modules are imported.
-  build-depends:       base >=4.7 && <4.8
+  build-depends:       base >=4.7 && < 5
                        , atlassian-connect-descriptor >= 0.2
-                       , jwt                >= 0.3     && < 0.5
+                       , jwt                == 0.6.*
                        , aeson              >  0.7.0.3 && < 0.9
                        , bytestring         >= 0.9     && <= 0.11
                        , base64-bytestring  == 1.0.*
@@ -102,18 +102,18 @@
                        , configurator       == 0.3.*
                        , containers         == 0.5.*
                        , hostname           == 1.*
-                       , http-media         == 0.4.*
+                       , http-media         == 0.6.*
                        , mtl                == 2.*
-                       , snap               >= 0.13.3  && < 0.14
+                       , snap               == 0.14.*
                        , snap-core          >= 0.9     && <= 1
                        , split              == 0.2.*
                        , text               >= 0.11    && < 1.3
-                       , time               >= 1.1     && < 1.5
+                       , time               >= 1.2     && < 1.6
                        , time-units         == 1.*
                        , transformers       >= 0.3     && < 0.5
-                       , http-client        == 0.3.*
+                       , http-client        == 0.4.*
                        , http-types         == 0.8.*
-                       , network-api-support == 0.1.*
+                       , network-api-support == 0.2.*
                        , cryptohash         == 0.11.*
 
   if flag(network-uri)
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
@@ -35,6 +35,7 @@
     -- * Request Modifiers
     , addHeader
     , setPostParams
+    , setQueryParams
     , setBody
     , setBodyLazy
     , setJson
@@ -149,6 +150,6 @@
          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
+-- Wrapper around another function
 setPostParams :: [(B.ByteString, B.ByteString)] -> Endo Request
-setPostParams = setParams
+setPostParams = setUrlEncodedBody