diff --git a/twitter_ebooks.gemspec b/twitter_ebooks.gemspec
index eccbb22..e3a3f14 100644
--- a/twitter_ebooks.gemspec
+++ b/twitter_ebooks.gemspec
@@ -21,7 +21,7 @@ Gem::Specification.new do |gem|
   gem.add_development_dependency 'pry-byebug'
 
   gem.add_runtime_dependency 'twitter', '~> 5.0'
-  gem.add_runtime_dependency 'simple_oauth', '~> 0.2.0'
+  gem.add_runtime_dependency 'simple_oauth'
   gem.add_runtime_dependency 'eventmachine', '~> 1.0.3'
   gem.add_runtime_dependency 'rufus-scheduler'
   gem.add_runtime_dependency 'gingerice'