plain_model.gemspec in plain_model-0.2.0 vs plain_model.gemspec in plain_model-0.2.1

@@ -22,10 +22,10 @@
   end
   spec.bindir        = 'exe'
   spec.executables   = spec.files.grep(%r{^exe/}) { |f| File.basename(f) }
   spec.require_paths = ['lib']
 
-  spec.add_dependency 'activemodel', '~> 5.2'
+  spec.add_dependency 'activemodel'
 
   spec.add_development_dependency 'bundler', '~> 2.0'
   spec.add_development_dependency 'minitest', '~> 5.0'
   spec.add_development_dependency 'rake', '~> 10.0'
   spec.add_development_dependency 'rubocop', '~> 0.71.0'