diff --git a/Control/Monad/Trans/Resource.hs b/Control/Monad/Trans/Resource.hs
--- a/Control/Monad/Trans/Resource.hs
+++ b/Control/Monad/Trans/Resource.hs
@@ -116,6 +116,7 @@
 import qualified Control.Monad.ST.Lazy as Lazy
 
 import Data.Functor.Identity (Identity, runIdentity)
+import Control.Monad.Morph
 
 -- | A lookup key for a specific release action. This value is returned by
 -- 'register' and 'allocate', and is passed to 'release'.
@@ -385,11 +386,20 @@
 -- | Transform the monad a @ResourceT@ lives in. This is most often used to
 -- strip or add new transformers to a stack, e.g. to run a @ReaderT@.
 --
+-- Note that this function is a slight generalization of 'hoist'.
+--
 -- Since 0.3.0
 transResourceT :: (m a -> n b)
                -> ResourceT m a
                -> ResourceT n b
 transResourceT f (ResourceT mx) = ResourceT (\r -> f (mx r))
+
+-- | Since 0.4.7
+instance MFunctor ResourceT where
+    hoist f (ResourceT mx) = ResourceT (\r -> f (mx r))
+-- | Since 0.4.7
+instance MMonad ResourceT where
+    embed f m = ResourceT (\i -> unResourceT (f (unResourceT m i)) i)
 
 -- | This function mirrors @join@ at the transformer level: it will collapse
 -- two levels of @ResourceT@ into a single @ResourceT@.
diff --git a/resourcet.cabal b/resourcet.cabal
--- a/resourcet.cabal
+++ b/resourcet.cabal
@@ -1,5 +1,5 @@
 Name:                resourcet
-Version:             0.4.6
+Version:             0.4.7
 Synopsis:            Deterministic allocation and freeing of scarce resources.
 Description:
 	This package was originally included with the conduit package, and has since been split off. For more information, please see <http://www.yesodweb.com/book/conduits>.
@@ -21,6 +21,7 @@
                      , containers
                      , transformers             >= 0.2.2        && < 0.4
                      , mtl                      >= 2.0          && < 2.2
+                     , mmorph
   ghc-options:     -Wall
 
 test-suite test