dir_model.gemspec in dir_model-0.7.0 vs dir_model.gemspec in dir_model-0.7.1

@@ -17,8 +17,9 @@
   spec.bindir        = "exe"
   spec.executables   = spec.files.grep(%r{^exe/}) { |f| File.basename(f) }
   spec.require_paths = ["lib"]
 
   spec.add_dependency 'activesupport',       '~> 4.2'
+  spec.add_dependency 'activemodel',         '~> 4.2'
   spec.add_dependency 'inherited_class_var', '1.0.0.beta1'
   spec.add_dependency 'fastimage',           '~> 1.8'
 end