diff --git a/sensu-plugin-spec.gemspec b/sensu-plugin-spec.gemspec
index 91a772a..7800467 100644
--- a/sensu-plugin-spec.gemspec
+++ b/sensu-plugin-spec.gemspec
@@ -20,7 +20,7 @@ Gem::Specification.new do |spec|
 
   spec.add_dependency "minitest"
 
-  spec.add_development_dependency "bundler", "~> 1.5"
+  spec.add_development_dependency "bundler", "~> 2.2"
   spec.add_development_dependency "rake"
   spec.add_development_dependency "sensu-plugin"
 end