diff --git a/activejob-perform_later.gemspec b/activejob-perform_later.gemspec
index 1b301fe..86b2d76 100644
--- a/activejob-perform_later.gemspec
+++ b/activejob-perform_later.gemspec
@@ -20,6 +20,6 @@ Gem::Specification.new do |spec|
 
   spec.add_dependency 'activejob'
 
-  spec.add_development_dependency "bundler", "~> 1.6"
+  spec.add_development_dependency "bundler", "~> 2.2"
   spec.add_development_dependency "rake"
 end