diff --git a/Crypto/Random/AESCtr.hs b/Crypto/Random/AESCtr.hs
--- a/Crypto/Random/AESCtr.hs
+++ b/Crypto/Random/AESCtr.hs
@@ -31,6 +31,17 @@
 import Data.Byteable
 import Data.Bits (xor, (.&.))
 
+-- | AES Counter mode Pseudo random generator.
+--
+-- Provide a very good Cryptographic pseudo random generator
+-- that create pseudo random output based an AES cipher
+-- used in counter mode, initialized from random key, random IV
+-- and random nonce.
+--
+-- This CPRG uses 64 bytes of pure entropy to create its random state.
+--
+-- By default, this generator will automatically reseed after generating
+-- 1 megabyte of data.
 data AESRNG = AESRNG { aesrngState     :: RNG
                      , aesrngEntropy   :: EntropyPool
                      , aesrngThreshold :: Int -- ^ in number of generated block
diff --git a/cprng-aes.cabal b/cprng-aes.cabal
--- a/cprng-aes.cabal
+++ b/cprng-aes.cabal
@@ -1,5 +1,5 @@
 Name:                cprng-aes
-Version:             0.5.1
+Version:             0.5.2
 Description:         
     Simple crypto pseudo-random-number-generator with really good randomness property.
     .
@@ -35,7 +35,7 @@
                    , bytestring
                    , byteable
                    , random
-                   , crypto-random >= 0.0 && < 0.1
+                   , crypto-random >= 0.0.7 && < 0.1
   Exposed-modules:   Crypto.Random.AESCtr
   Other-modules:     Crypto.Random.AESCtr.Internal
   ghc-options:       -Wall