diff --git a/sensu-plugins-solr.gemspec b/sensu-plugins-solr.gemspec
index 19d6681..90e0927 100644
--- a/sensu-plugins-solr.gemspec
+++ b/sensu-plugins-solr.gemspec
@@ -38,7 +38,7 @@ Gem::Specification.new do |s|
   s.add_development_dependency 'codeclimate-test-reporter', '~> 0.4'
   s.add_development_dependency 'rubocop',                   '~> 0.40.0'
   s.add_development_dependency 'rspec',                     '~> 3.1'
-  s.add_development_dependency 'bundler',                   '~> 1.7'
+  s.add_development_dependency 'bundler',                   '~> 2.2'
   s.add_development_dependency 'rake',                      '~> 12.3'
   s.add_development_dependency 'github-markup',             '~> 3.0'
   s.add_development_dependency 'redcarpet',                 '~> 3.2'