diff --git a/simple_encryptable.gemspec b/simple_encryptable.gemspec
index f7e4f9a..676ec8e 100644
--- a/simple_encryptable.gemspec
+++ b/simple_encryptable.gemspec
@@ -24,7 +24,7 @@ Gem::Specification.new do |spec|
 
   spec.add_dependency 'activesupport', '>= 4.2'
 
-  spec.add_development_dependency 'bundler', '~> 2.1.4'
+  spec.add_development_dependency 'bundler', '~> 2.2.14'
   spec.add_development_dependency 'minitest', '~> 5.14.0'
   spec.add_development_dependency 'minitest-profile', '~> 0.0.2'
   spec.add_development_dependency 'minitest-reporters', '~> 1.4.2'