a2z.gemspec in a2z-0.1.2 vs a2z.gemspec in a2z-0.1.3

@@ -14,10 +14,10 @@
   gem.name          = 'a2z'
   gem.require_path  = 'lib'
   gem.version       = A2z::VERSION
   
   gem.add_dependency 'crack'
-  gem.add_dependency 'jeff'
+  gem.add_dependency 'jeff', '~> 0.6.4'
   gem.add_dependency 'money'
   
   gem.add_development_dependency 'rake'
   gem.add_development_dependency 'rspec'
 end