diff --git a/bitballoon.gemspec b/bitballoon.gemspec
index f04f830..c6067e8 100644
--- a/bitballoon.gemspec
+++ b/bitballoon.gemspec
@@ -17,9 +17,9 @@ Gem::Specification.new do |gem|
   gem.test_files    = gem.files.grep(%r{^(test|spec|features)/})
   gem.require_paths = ["lib"]
 
-  gem.add_dependency "oauth2", "~>  0.9.2"
+  gem.add_dependency "oauth2", "~>  1.1.0"
   gem.add_dependency "slop", "~> 3.6.0"
   gem.add_dependency "highline", "~> 1.6.21"
   gem.add_development_dependency "minitest"
   gem.add_development_dependency "webmock"
-end
\ No newline at end of file
+end