diff --git a/Gemfile b/Gemfile
index eb71681..a2ff910 100644
--- a/Gemfile
+++ b/Gemfile
@@ -1,11 +1,8 @@
 source :rubygems
 
+gem 'jruby-openssl', :platforms => :jruby do
 gem 'rake'
 
-platforms :jruby do
-  gem 'jruby-openssl', '~> 0.7'
-end
-
 group :test do
   gem 'rspec', '>= 2.11'
   gem 'simplecov'
diff --git a/simple_oauth.gemspec b/simple_oauth.gemspec
index 340f63a..9435873 100644
--- a/simple_oauth.gemspec
+++ b/simple_oauth.gemspec
@@ -1,6 +1,7 @@
 # encoding: utf-8
 
 Gem::Specification.new do |spec|
+  spec.add_development_dependency 'bundler', '~> 1.0'
   spec.name    = 'simple_oauth'
   spec.version = '0.2.0'