diff --git a/ext/bigdecimal/bigdecimal.gemspec b/ext/bigdecimal/bigdecimal.gemspec
index 980deb07b4..7e5388d8e0 100644
--- a/ext/bigdecimal/bigdecimal.gemspec
+++ b/ext/bigdecimal/bigdecimal.gemspec
@@ -1,6 +1,6 @@
 # coding: utf-8
 
-bigdecimal_version = '2.0.2'
+bigdecimal_version = '3.0.0'
 
 Gem::Specification.new do |s|
   s.name          = "bigdecimal"