diff --git a/Changelog.md b/Changelog.md
index fdda1560..e6f779be 100644
--- a/Changelog.md
+++ b/Changelog.md
@@ -1,17 +1,14 @@
-# Master (unreleased)
+# v0.8.9 2016-01-05
 
 * Add mutation from `Hash#[]` to `Hash#key?` (#511)
 * Add mutation from `Hash#fetch` to `Hash#key?` (#511)
 * Add mutation from `#at` to `#key?` (#511)
 * Add mutation from `Hash#values_at` to `Hash#fetch_values` (#510)
 
-# v0.8.8 2015-xx-xx
+# v0.8.8 2015-11-15
 
 * Drop support for rspec-3.2
 * Remove CI specific job number default
-
-# v0.8.8 2015-11-15
-
 * Add support for rspec-3.3.4
 * Add mutations/s performance metric to report
 
diff --git a/lib/mutant/version.rb b/lib/mutant/version.rb
index ef9300a0..391f6164 100644
--- a/lib/mutant/version.rb
+++ b/lib/mutant/version.rb
@@ -1,4 +1,4 @@
 module Mutant
   # Current mutant version
-  VERSION = '0.8.8'.freeze
+  VERSION = '0.8.9'.freeze
 end # Mutant