diff --git a/CHANGES.md b/CHANGES.md
index 07e9d2a7..dbbb313e 100644
--- a/CHANGES.md
+++ b/CHANGES.md
@@ -1,5 +1,10 @@
 # Stable (3.x)
 
+3.0.3
+---------
+
+- Fix recursive memory/cpu growth issue when calling class-level `Message.to_json`. [#190]
+
 3.0.2
 ---------
 
diff --git a/lib/protobuf/version.rb b/lib/protobuf/version.rb
index 959b1577..11b9d75a 100644
--- a/lib/protobuf/version.rb
+++ b/lib/protobuf/version.rb
@@ -1,3 +1,3 @@
 module Protobuf
-  VERSION = '3.0.2'
+  VERSION = '3.0.3'
 end