diff --git a/omniauth-gitlab.gemspec b/omniauth-gitlab.gemspec
index 0f4c968..a8caf49 100644
--- a/omniauth-gitlab.gemspec
+++ b/omniauth-gitlab.gemspec
@@ -17,8 +17,8 @@ Gem::Specification.new do |gem|
   gem.test_files    = gem.files.grep(%r{^(test|spec|features)/})
   gem.require_paths = ['lib']
 
-  gem.add_dependency 'omniauth', '~> 2.0'
-  gem.add_dependency 'omniauth-oauth2', '~> 1.8.0'
+  gem.add_dependency 'omniauth', '~> 1.0'
+  gem.add_dependency 'omniauth-oauth2', '~> 1.7.3'
   gem.add_development_dependency 'rspec', '~> 3.1'
   gem.add_development_dependency 'rspec-its', '~> 1.0'
   gem.add_development_dependency 'simplecov'