metanorma-gb.gemspec in metanorma-gb-1.0.11 vs metanorma-gb.gemspec in metanorma-gb-1.0.12

@@ -31,10 +31,10 @@
   spec.add_dependency "metanorma-iso", "~> 1.0.1"
   spec.add_dependency "isodoc", "~> 0.9.1"
   spec.add_dependency "twitter_cldr"
   spec.add_dependency "gb-agencies", "~> 0.0.4"
 
-  spec.add_development_dependency "bundler", "~> 1.15"
+  spec.add_development_dependency "bundler", "~> 2.0.1"
   spec.add_development_dependency "byebug", "~> 9.1"
   spec.add_development_dependency "equivalent-xml", "~> 0.6"
   spec.add_development_dependency "guard", "~> 2.14"
   spec.add_development_dependency "guard-rspec", "~> 4.7"
   spec.add_development_dependency "rake", "~> 12.0"