diff --git a/apiary-websockets.cabal b/apiary-websockets.cabal
--- a/apiary-websockets.cabal
+++ b/apiary-websockets.cabal
@@ -1,5 +1,5 @@
 name:                apiary-websockets
-version:             0.4.2.0
+version:             0.4.3.1
 x-revision:          1
 synopsis:            websockets supper for apiary web framework.
 description:
@@ -20,7 +20,7 @@
 library
   exposed-modules:     Web.Apiary.WebSockets
   other-modules:       
-  build-depends:       base               >=4.7   && <4.8
+  build-depends:       base               >=4.5   && <4.8
                      , apiary             >=0.4.2 && <0.5
                      , wai-websockets     >=2.1   && <2.2
                      , websockets         >=0.8   && <0.9