diff --git a/amqp.cabal b/amqp.cabal
--- a/amqp.cabal
+++ b/amqp.cabal
@@ -1,5 +1,5 @@
 Name:                amqp
-Version:             0.1
+Version:             0.1.1
 Synopsis:            Client library for AMQP servers (currently only RabbitMQ)
 Description:         Client library for AMQP servers (currently only RabbitMQ)
 License:             BSD3
@@ -14,6 +14,6 @@
                      examples/ExampleProducer.hs
 
 Library
-  Build-Depends:      base >= 3 && < 5, binary, containers>=0.2, bytestring>=0.9, network-bytestring>=0.1.2, network
+  Build-Depends:      base >= 4 && < 5, binary, containers>=0.2, bytestring>=0.9, network-bytestring>=0.1.2, network
   Exposed-modules:    Network.AMQP, Network.AMQP.Types
   Other-modules:      Network.AMQP.Generated, Network.AMQP.Helpers, Network.AMQP.Protocol