diff --git a/Data/Digest/Murmur3.hs b/Data/Digest/Murmur3.hs
--- a/Data/Digest/Murmur3.hs
+++ b/Data/Digest/Murmur3.hs
@@ -5,6 +5,7 @@
   where
 
 import Control.Monad
+import Control.Applicative
 import Data.Bits
 import Data.ByteString (ByteString)
 import qualified Data.ByteString as BS
@@ -16,6 +17,11 @@
 
 
 newtype Identity a = MakeIdentity { identityAction :: a }
+instance Functor Identity where 
+  fmap f = MakeIdentity . f . identityAction
+instance Applicative Identity where
+  pure = return
+  (<*>) = ap
 instance Monad Identity where
   return a = MakeIdentity a
   (>>=) x f = f $ identityAction x
diff --git a/direct-murmur-hash.cabal b/direct-murmur-hash.cabal
--- a/direct-murmur-hash.cabal
+++ b/direct-murmur-hash.cabal
@@ -1,5 +1,5 @@
 name: direct-murmur-hash
-version: 1.0
+version: 1.0.1
 cabal-version: >= 1.12
 build-type: Simple
 license: BSD3
@@ -11,7 +11,8 @@
 bug-reports: https://github.com/IreneKnapp/direct-murmur-hash/issues
 category: Data
 synopsis: An implementation of the MurmurHash3 algorithm
-description:
+description: The Murmur3 hash algorithm is a published, high-performance,
+  non-cryptographic hash.  This implementation of it should be decently fast.
 
 Source-Repository head
   type: git