ivo.gemspec in ivo-0.4.0 vs ivo.gemspec in ivo-0.5.0

@@ -17,9 +17,9 @@
   end
   spec.bindir        = "exe"
   spec.executables   = spec.files.grep(%r{^exe/}) { |f| File.basename(f) }
   spec.require_paths = ["lib"]
 
-  spec.add_development_dependency "bundler", "~> 1"
+  spec.add_development_dependency "bundler", "~> 2"
   spec.add_development_dependency "rake", "~> 12"
   spec.add_development_dependency "rspec", "~> 3"
 end