diff --git a/Acme/RealWorld.hs b/Acme/RealWorld.hs
--- a/Acme/RealWorld.hs
+++ b/Acme/RealWorld.hs
@@ -20,7 +20,7 @@
     hypothetically,
 ) where
 
-import Control.Exception (bracket)
+import qualified Control.Exception as E
 import GHC.IO
 import GHC.Exts
 
@@ -66,4 +66,4 @@
 -- operation will block because it never gets a chance to restore the original
 -- state of the universe.
 hypothetically :: IO a -> IO a
-hypothetically action = bracket getWorld putWorld (\_ -> action)
+hypothetically action = E.bracket getWorld putWorld (\_ -> action)
diff --git a/acme-realworld.cabal b/acme-realworld.cabal
--- a/acme-realworld.cabal
+++ b/acme-realworld.cabal
@@ -1,5 +1,5 @@
 name:                acme-realworld
-version:             0.1
+version:             0.1.1
 synopsis:            Primitives for manipulating the state of the universe
 description:
     GHC represents an IO action internally as a function from one state of the