diff --git a/messagepack.cabal b/messagepack.cabal
--- a/messagepack.cabal
+++ b/messagepack.cabal
@@ -1,5 +1,5 @@
 name               : messagepack
-version            : 0.5.0
+version            : 0.5.1
 synopsis           : Serialize instance for Message Pack Object
 description        : Serialize instance for Message Pack Object
 homepage           : https://github.com/rodrigosetti/messagepack
@@ -27,7 +27,7 @@
   default-language : Haskell2010
   build-depends    : base       == 4.*
                    , bytestring == 0.10.*
-                   , cereal     == 0.4.*
+                   , cereal     == 0.5.*
                    , containers == 0.5.*
 
 test-suite messagepack-tests
@@ -38,7 +38,7 @@
   build-depends    : base                       == 4.*
                    , QuickCheck                 == 2.*
                    , bytestring                 == 0.10.*
-                   , cereal                     == 0.4.*
+                   , cereal                     == 0.5.*
                    , containers                 == 0.5.*
                    , test-framework             == 0.8.*
                    , test-framework-quickcheck2 == 0.3.*