README.md in sluice-0.3.4 vs README.md in sluice-0.4.0

- old
+ new

@@ -24,10 +24,10 @@
 
     $ gem install sluice
 
 Or in your Gemfile:
 
-    gem 'sluice', '~> 0.3.4'
+    gem 'sluice', '~> 0.4.0'
 
 ## Usage
 
 Rubydoc and usage examples to come.