omniauth-oauth2.gemspec in omniauth-oauth2-1.5.0 vs omniauth-oauth2.gemspec in omniauth-oauth2-1.6.0

@@ -2,10 +2,10 @@
 $LOAD_PATH.unshift(lib) unless $LOAD_PATH.include?(lib)
 require "omniauth-oauth2/version"
 
 Gem::Specification.new do |gem|
   gem.add_dependency "oauth2",     "~> 1.1"
-  gem.add_dependency "omniauth",   "~> 1.2"
+  gem.add_dependency "omniauth",   "~> 1.9"
 
   gem.add_development_dependency "bundler", "~> 1.0"
 
   gem.authors       = ["Michael Bleigh", "Erik Michaels-Ober", "Tom Milewski"]
   gem.email         = ["[e-mail]", "[e-mail]", "[e-mail]"]