diff --git a/textrazor.gemspec b/textrazor.gemspec
index 190d92f..d3971f1 100644
--- a/textrazor.gemspec
+++ b/textrazor.gemspec
@@ -21,7 +21,7 @@ Gem::Specification.new do |spec|
   spec.add_dependency "rest-client"
   spec.add_dependency "fast_open_struct"
 
-  spec.add_development_dependency "bundler", "~> 2.1.4"
+  spec.add_development_dependency "bundler", "~> 2.2.9"
   spec.add_development_dependency "rake", "~> 13.0.1"
   spec.add_development_dependency "rspec", "~> 3.9.0"
   spec.add_development_dependency "dotenv", "~> 2.0"