diff --git a/omniauth-rpi.gemspec b/omniauth-rpi.gemspec
index ac82090..0d10072 100644
--- a/omniauth-rpi.gemspec
+++ b/omniauth-rpi.gemspec
@@ -30,7 +30,7 @@ Gem::Specification.new do |spec|
   spec.require_paths = ['lib']
 
   spec.add_dependency 'jwt'
-  spec.add_dependency 'omniauth', '~> 1.4'
+  spec.add_dependency 'omniauth', '~> 1.9'
   spec.add_dependency 'omniauth-oauth2', '~> 1.4'
 
   spec.add_development_dependency 'bundler', '~> 2.0'