diff --git a/yesod-auth/Yesod/Auth/BrowserId.hs b/yesod-auth/Yesod/Auth/BrowserId.hs
index 75f1cb57..95d6c7fd 100644
--- a/yesod-auth/Yesod/Auth/BrowserId.hs
+++ b/yesod-auth/Yesod/Auth/BrowserId.hs
@@ -17,7 +17,6 @@ import Data.Maybe (fromMaybe)
 import Control.Monad (when)
 import Control.Exception (throwIO)
 import Text.Julius (julius, rawJS)
-import Data.Aeson (toJSON)
 import Network.URI (uriPath, parseURI)
 import Data.FileEmbed (embedFile)
 import Data.ByteString (ByteString)
diff --git a/yesod-core/Yesod/Core/Json.hs b/yesod-core/Yesod/Core/Json.hs
index ce9ef337..94fcbcfb 100644
--- a/yesod-core/Yesod/Core/Json.hs
+++ b/yesod-core/Yesod/Core/Json.hs
@@ -11,9 +11,12 @@ module Yesod.Core.Json
 
       -- * Produce JSON values
     , J.Value (..)
+    , J.ToJSON (..)
+    , J.FromJSON (..)
     , array
     , object
     , (.=)
+    , (J..:)
 
       -- * Convenience functions
     , jsonOrRedirect
diff --git a/yesod-form/Yesod/Form/Jquery.hs b/yesod-form/Yesod/Form/Jquery.hs
index d56573d8..7ddeff47 100644
--- a/yesod-form/Yesod/Form/Jquery.hs
+++ b/yesod-form/Yesod/Form/Jquery.hs
@@ -20,7 +20,6 @@ import Text.Hamlet (shamlet)
 import Text.Julius (julius, rawJS)
 import Data.Text (Text, pack, unpack)
 import Data.Monoid (mconcat)
-import Data.Aeson (toJSON)
 
 -- | Gets the Google hosted jQuery UI 1.8 CSS file with the given theme.
 googleHostedJqueryUiCss :: Text -> Text
diff --git a/yesod/Yesod.hs b/yesod/Yesod.hs
index 2ee9080d..16c6eb1e 100644
--- a/yesod/Yesod.hs
+++ b/yesod/Yesod.hs
@@ -20,7 +20,6 @@ module Yesod
     , julius
     , JavascriptUrl
     , renderJavascriptUrl
-    , toJSON
       -- ** Cassius/Lucius
     , cassius
     , lucius
@@ -38,7 +37,6 @@ import Yesod.Form
 import Yesod.Persist
 
 import Network.Wai
-import Data.Aeson (toJSON)
 
 showIntegral :: Integral a => a -> String
 showIntegral x = show (fromIntegral x :: Integer)