diff --git a/CHANGELOG.md b/CHANGELOG.md
index 861b1ca..3f72934 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,4 +1,4 @@
-### master
+### Version 2.0.0
 * Add support for tagged measurements (#54)
 
 ### Version 1.1.0
diff --git a/lib/librato/rack/version.rb b/lib/librato/rack/version.rb
index 379c090..5781efd 100644
--- a/lib/librato/rack/version.rb
+++ b/lib/librato/rack/version.rb
@@ -1,5 +1,5 @@
 module Librato
   class Rack
-    VERSION = "1.1.0"
+    VERSION = "2.0.0"
   end
 end