diff --git a/shoulda-matchers.gemspec b/shoulda-matchers.gemspec
index fac570ad..209b050e 100644
--- a/shoulda-matchers.gemspec
+++ b/shoulda-matchers.gemspec
@@ -18,7 +18,7 @@ Gem::Specification.new do |s|
   s.require_paths = ["lib"]
 
   s.add_dependency('activesupport', '>= 3.0.0')
-  s.add_dependency('bourne',        '~> 1.1.2')
+  s.add_dependency('bourne',        '~> 1.2.0')
 
   s.add_development_dependency('appraisal',   '~> 0.4')
   s.add_development_dependency('aruba')