diff --git a/omniauth-vkontakte.gemspec b/omniauth-vkontakte.gemspec
index 95f31eb..9b86eb4 100644
--- a/omniauth-vkontakte.gemspec
+++ b/omniauth-vkontakte.gemspec
@@ -16,5 +16,5 @@ Gem::Specification.new do |gem|
   gem.require_paths = ['lib']
   gem.version       = OmniAuth::Vkontakte::VERSION
   gem.required_ruby_version = '>= 2.5.0'
-  gem.add_runtime_dependency 'omniauth-oauth2', ['>= 1.5', '<= 1.7.1']
+  gem.add_runtime_dependency 'omniauth-oauth2', '>= 1.5', '<= 1.7.3'
 end