diff --git a/System/Random/MWC/Distributions.hs b/System/Random/MWC/Distributions.hs
--- a/System/Random/MWC/Distributions.hs
+++ b/System/Random/MWC/Distributions.hs
@@ -41,7 +41,7 @@
 import Control.Monad.Primitive (PrimMonad, PrimState)
 import Data.Bits ((.&.))
 import Data.Foldable (foldl')
-import Data.Traversable (mapM)
+import Data.Traversable (Traversable,mapM)
 import Data.Word (Word32)
 import System.Random.MWC (Gen, uniform, uniformR)
 import qualified Data.Vector.Unboxed         as I
diff --git a/mwc-random.cabal b/mwc-random.cabal
--- a/mwc-random.cabal
+++ b/mwc-random.cabal
@@ -1,5 +1,5 @@
 name:           mwc-random
-version:        0.13.3.1
+version:        0.13.3.2
 synopsis:       Fast, high quality pseudo random number generation
 description:
   This package contains code for generating high quality random