diff --git a/watir-get-image-content.gemspec b/watir-get-image-content.gemspec
index 3695425..c6efdec 100644
--- a/watir-get-image-content.gemspec
+++ b/watir-get-image-content.gemspec
@@ -19,7 +19,7 @@ Gem::Specification.new do |spec|
 
   spec.add_dependency "watir"
 
-  spec.add_development_dependency "bundler", "~> 1.3"
+  spec.add_development_dependency "bundler"
   spec.add_development_dependency "rake"
   spec.add_development_dependency "rspec"
   spec.add_development_dependency "rmagick"