diff --git a/omniauth-intercom.gemspec b/omniauth-intercom.gemspec
index c492f1d..1ec4514 100644
--- a/omniauth-intercom.gemspec
+++ b/omniauth-intercom.gemspec
@@ -21,7 +21,7 @@ Gem::Specification.new do |spec|
   spec.add_runtime_dependency 'omniauth-oauth2', '>= 1.2'
   spec.add_runtime_dependency 'base64'
 
-  spec.add_development_dependency "rake", "~> 10.0"
+  spec.add_development_dependency "rake", "~> 13.2"
   spec.add_development_dependency "rspec", "~> 3.0"
-  spec.add_development_dependency "rack", "~> 1.6"
+  spec.add_development_dependency "rack", "~> 3.1"
 end