diff --git a/Gemfile b/Gemfile
index 1e8c977..c822e9d 100644
--- a/Gemfile
+++ b/Gemfile
@@ -7,6 +7,7 @@ group :development do
   gem 'guard-bundler'
   gem 'guard-rspec'
   gem 'rake'
+  gem 'bundler'
 end
 
 group :test do
diff --git a/omniauth-remote-user.gemspec b/omniauth-remote-user.gemspec
index 413789f..2ab4766 100644
--- a/omniauth-remote-user.gemspec
+++ b/omniauth-remote-user.gemspec
@@ -2,7 +2,6 @@ require File.dirname(__FILE__) + '/lib/omniauth-remote-user/version'
 
 Gem::Specification.new do |gem|
   gem.add_runtime_dependency 'omniauth', '~> 1.0'
-  gem.add_development_dependency 'bundler', '~> 1.0'
   gem.name = 'omniauth-remote-user'
   gem.version = Omniauth::RemoteUser::VERSION
   gem.description = 'Authentication with Remote-User HTTP header for Omniauth.'
--
libgit2 0.21.2