mabmapper.gemspec in mabmapper-2.0.1 vs mabmapper.gemspec in mabmapper-2.0.2

@@ -22,9 +22,9 @@
   gem.required_ruby_version = '>= 1.9.3'
 
   gem.add_dependency('nokogiri', '~> 1.6')
   gem.add_dependency('activesupport', '>= 4.0')
   gem.add_dependency('libxml-ruby', '~> 2.7')
-  gem.add_dependency('metacrunch-ubpb')
+  gem.add_dependency('metacrunch-ubpb', '~> 2.1')
   gem.add_dependency('oj', '~> 2.1')
   gem.add_dependency('stringex', '~> 2.1')
 end