diff --git a/graphene.cabal b/graphene.cabal
--- a/graphene.cabal
+++ b/graphene.cabal
@@ -10,7 +10,7 @@
 -- PVP summary:      +-+------- breaking API changes
 --                   | | +----- non-breaking API additions
 --                   | | | +--- code changes with no API change
-version:             0.1.0.3
+version:             0.1.0.4
 
 -- A short (one-line) description of the package.
 synopsis: A minimal Graph Theory library.
@@ -58,7 +58,7 @@
   -- other-modules:       
   
   -- Other library packages from which modules are imported.
-  build-depends:  base ==4.6.*
+  build-depends:  base >=4.6 && <5
                 , lens-family ==1.0.0
                 , lens-family-core ==1.0.*
                 , transformers >=0.2.0 && <0.4