diff --git a/Gemfile b/Gemfile
index 7956def..4f30d19 100644
--- a/Gemfile
+++ b/Gemfile
@@ -2,6 +2,11 @@ source :rubygems
 
 gemspec
 
-gem "sqlite3", :platforms => :ruby
+platforms :ruby do
+  gem "sqlite3"
+end
 
-gem "activerecord-jdbcsqlite3-adapter",   :platforms => :jruby
+platforms :jruby do
+  gem "minitest", ">= 3.0"
+  gem "activerecord-jdbcsqlite3-adapter", "~> 1.2.2.1"
+end
diff --git a/draper.gemspec b/draper.gemspec
index 7a8abe8..eb262aa 100644
--- a/draper.gemspec
+++ b/draper.gemspec
@@ -26,6 +26,5 @@ Gem::Specification.new do |s|
   s.add_development_dependency 'rspec-mocks', '>= 2.12.1'
   s.add_development_dependency 'yard'
   s.add_development_dependency 'minitest-rails', '~> 0.2'
-  s.add_development_dependency 'minitest', '~> 3.0' if RUBY_PLATFORM == "java"
   s.add_development_dependency 'capybara'
 end