diff --git a/BitStringRandomMonad.cabal b/BitStringRandomMonad.cabal
--- a/BitStringRandomMonad.cabal
+++ b/BitStringRandomMonad.cabal
@@ -2,7 +2,7 @@
 --  documentation, see http://haskell.org/cabal/users-guide/
 
 name:                BitStringRandomMonad
-version:             0.1.1.1
+version:             0.1.1.2
 description:         A library which turns a bytestring into a random monad.
                      Input could be any PRNG which can output a lazy
                      bytestring.
diff --git a/Crypto/RandomMonad.hs b/Crypto/RandomMonad.hs
--- a/Crypto/RandomMonad.hs
+++ b/Crypto/RandomMonad.hs
@@ -1,8 +1,9 @@
 {-# LANGUAGE GeneralizedNewtypeDeriving #-}
 {-# LANGUAGE FlexibleContexts #-}
 {-# LANGUAGE TypeFamilies #-}
+{-# LANGUAGE Trustworthy #-}
 
-module Crypto.RandomMonad (RndT, RndST, RndIO, Rnd, RndState, getRandomM, getRandom2M, runRndT, newRandomElementST, getRandomElement, randomElementsLength, replaceSeedM, addSeedM, getRandomByteStringM, RandomElementsListST()) where
+module Crypto.RandomMonad (RndT, RndST, RndIO, Rnd, RndState, getRandomM, getRandom2M, runRndT, newRandomElementST, getRandomElement, randomElementsLength, replaceSeedM, addSeedM, getRandomByteStringM, RandomElementsListST(), BitStringToRandomExceptions(..)) where
 
 import Control.Exception (Exception, throw)
 import Control.Monad.Identity (Identity)