diff --git a/CHANGELOG b/CHANGELOG
index 22db97c..9200223 100644
--- a/CHANGELOG
+++ b/CHANGELOG
@@ -1,3 +1,7 @@
+Version 0.3.1 (2016-07-06)
+--------------------------
+Replace module_function everywhere with self (#46)
+
 Version 0.3.0 (2016-07-05)
 --------------------------
 Update Bundler version in Travis (#45)
diff --git a/README.md b/README.md
index 8633f15..e347f92 100644
--- a/README.md
+++ b/README.md
@@ -26,7 +26,7 @@ Sluice has been extracted from a pair of Ruby ETL applications built by the [Sno
 
 Or in your Gemfile:
 
-    gem 'sluice', '~> 0.3.0'
+    gem 'sluice', '~> 0.3.1'
 
 ## Usage
 
diff --git a/lib/sluice/version.rb b/lib/sluice/version.rb
index a1e4c0a..a6453c5 100644
--- a/lib/sluice/version.rb
+++ b/lib/sluice/version.rb
@@ -15,5 +15,5 @@
 
 module Sluice
   NAME    = "sluice"
-  VERSION = "0.3.0"
+  VERSION = "0.3.1"
 end
\ No newline at end of file