diff --git a/ruby-mailchecker.gemspec b/ruby-mailchecker.gemspec
index 7359a74e..91338858 100644
--- a/ruby-mailchecker.gemspec
+++ b/ruby-mailchecker.gemspec
@@ -1,7 +1,7 @@
 # coding: utf-8
 Gem::Specification.new do |spec|
   spec.name          = 'ruby-mailchecker'
-  spec.version='3.0.39'
+  spec.version='3.0.40'
   spec.authors       = ['Francois-Guillaume Ribreau', 'Jacob Burenstam', 'Owen Stephens']
   spec.email         = ['github@fgribreau.com']