diff --git a/src/Tesla.hs b/src/Tesla.hs
--- a/src/Tesla.hs
+++ b/src/Tesla.hs
@@ -151,14 +151,13 @@
 
 -- | Refresh authentication credentials using a refresh token.
 refreshAuth :: AuthInfo -> AuthResponse -> IO AuthResponse
-refreshAuth ai AuthResponse{..} = do
-  ar <- jpostWith jOpts authRefreshURL (encode $ Object (mempty
+refreshAuth _ AuthResponse{..} = do
+  jpostWith jOpts authRefreshURL (encode $ Object (mempty
                                                          & at "grant_type" ?~ "refresh_token"
                                                          & at "client_id" ?~ "ownerapi"
                                                          & at "refresh_token" ?~ String (T.pack _refresh_token)
                                                          & at "scope" ?~ "openid email offline_access"
                                                         ))
-  translateCreds ai ar
 
 jOpts :: Options
 jOpts = aOpts & header "content-type" .~ ["application/json"]
diff --git a/tesla.cabal b/tesla.cabal
--- a/tesla.cabal
+++ b/tesla.cabal
@@ -4,10 +4,10 @@
 --
 -- see: https://github.com/sol/hpack
 --
--- hash: 070dd37ca0154e649c325dc8c76ca9eb8cbd4d584a8d67acdf7fa1e38937a2f2
+-- hash: 2bd36802a7822687aeb0c3da485dcc9474c7d806ea6e6eeeca899b09bad7af39
 
 name:           tesla
-version:        0.5.2.0
+version:        0.5.2.1
 synopsis:       Tesla API client.
 description:    Please see the README on GitHub at <https://github.com/dustin/tesla#readme>
 category:       Web