diff --git a/Changelog.md b/Changelog.md
index 0a3251bc..41b6b428 100644
--- a/Changelog.md
+++ b/Changelog.md
@@ -1,4 +1,4 @@
-# v0.8.20 2018-11-25
+# v0.8.20 2018-11-27
 
 * Replace internal timers with monotonic ones.
 
diff --git a/lib/mutant/version.rb b/lib/mutant/version.rb
index 8bc82900..db354bd3 100644
--- a/lib/mutant/version.rb
+++ b/lib/mutant/version.rb
@@ -2,5 +2,5 @@
 
 module Mutant
   # Current mutant version
-  VERSION = '0.8.19'.freeze
+  VERSION = '0.8.20'.freeze
 end # Mutant