diff --git a/CHANGELOG.md b/CHANGELOG.md
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,10 @@
 # Changelog
 
+#### 0.2.2.0
+
+* Deprecate `parseNumber` in favor of `Data.Scientific.floatingOrInteger`
+* Re-export `Data.Scientific.floatingOrInteger`
+
 #### 0.2.1.1
 
 * Allow `scientific 0.3.*`
diff --git a/aeson-utils.cabal b/aeson-utils.cabal
--- a/aeson-utils.cabal
+++ b/aeson-utils.cabal
@@ -1,5 +1,5 @@
 name:                aeson-utils
-version:             0.2.1.1
+version:             0.2.2.0
 synopsis:            Utilities for working with Aeson.
 description:         Utilities for working with Aeson.
 license:             BSD3
@@ -30,5 +30,5 @@
     , aeson >= 0.6 && < 0.8
     , attoparsec >= 0.10 && < 0.12
     , bytestring >= 0.9 && < 0.11
-    , scientific >= 0.2 && < 0.4
+    , scientific >= 0.3.2 && < 0.4
     , text >= 0.11 && < 1.2
diff --git a/src/Data/Aeson/Utils.hs b/src/Data/Aeson/Utils.hs
--- a/src/Data/Aeson/Utils.hs
+++ b/src/Data/Aeson/Utils.hs
@@ -10,6 +10,7 @@
   , fromFloatDigits
   , (.=?)
   , parseNumber
+  , floatingOrInteger
   ) where
 
 import Data.Aeson
@@ -45,9 +46,5 @@
 -- | Convert a Scientific into an Integer if it doesn't have decimal points,
 -- otherwise to a Double.
 parseNumber :: Scientific -> Either Integer Double
-parseNumber n
-    | e >= 0    = Left $ c * 10 ^ e
-    | otherwise = Right $ realToFrac n
-  where
-    e = base10Exponent n
-    c = coefficient n
+parseNumber = either Right Left . floatingOrInteger
+{-# DEPRECATED parseNumber "Use Data.Scientific.floatingOrInteger instead" #-}