auto_increment.gemspec in auto_increment-1.4.1 vs auto_increment.gemspec in auto_increment-1.5.0

@@ -16,12 +16,12 @@
 
   s.files         = `git ls-files`.split("\n")
   s.test_files    = `git ls-files -- {test,spec,features}/*`.split("\n")
   s.require_paths = ['lib']
 
-  s.add_dependency 'activerecord', '>= 4.0', '< 5.2'
-  s.add_dependency 'activesupport', '>= 4.0', '< 5.2'
+  s.add_dependency 'activerecord', '>= 4.0', '< 5.3'
+  s.add_dependency 'activesupport', '>= 4.0', '< 5.3'
 
   s.add_development_dependency 'bundler'
   s.add_development_dependency 'rake'
 
   s.add_development_dependency 'rspec'
@@ -29,8 +29,9 @@
   s.add_development_dependency 'guard'
   s.add_development_dependency 'guard-rspec'
   s.add_development_dependency 'fuubar'
   s.add_development_dependency 'coveralls'
   s.add_development_dependency 'database_cleaner'
+  s.add_development_dependency 'appraisal'
 
   s.add_development_dependency 'sqlite3'
 end