diff --git a/hruby.cabal b/hruby.cabal
--- a/hruby.cabal
+++ b/hruby.cabal
@@ -2,7 +2,7 @@
 --  see http://haskell.org/cabal/users-guide/
 
 name:                hruby
-version:             0.3.1.3
+version:             0.3.1.4
 synopsis:            Embed a Ruby intepreter in your Haskell program !
 description:         This doesn't work with Ruby 1.9. Everything you need should be in Foreign.Ruby.Safe.
 license:             BSD3
@@ -29,7 +29,7 @@
                         , aeson                >= 0.7 && < 0.9
                         , bytestring           >= 0.10.0.2
                         , text                 >= 0.11
-                        , attoparsec           >= 0.11 && < 0.13
+                        , attoparsec           >= 0.11 && < 0.14
                         , vector               >= 0.10 && < 0.11
                         , unordered-containers >= 0.2 && < 0.3
                         , stm                  >= 2.4 && < 2.5