diff --git a/vagrant.gemspec b/vagrant.gemspec
index c4131b270..cef705755 100644
--- a/vagrant.gemspec
+++ b/vagrant.gemspec
@@ -15,7 +15,7 @@ Gem::Specification.new do |s|
   s.required_rubygems_version = ">= 1.3.6"
   s.rubyforge_project         = "vagrant"
 
-  s.add_dependency "bundler", ">= 1.5.2", "< 1.7.0"
+  s.add_dependency "bundler", ">= 1.5.2", "< 1.8.0"
   s.add_dependency "childprocess", "~> 0.5.0"
   s.add_dependency "erubis", "~> 2.7.0"
   s.add_dependency "i18n", "~> 0.6.0"