devise-argon2.gemspec in devise-argon2-1.0.0 vs devise-argon2.gemspec in devise-argon2-1.0.2

@@ -17,7 +17,7 @@
   gem.test_files    = gem.files.grep(%r{^(test|spec|features)/})
   gem.require_paths = ["lib"]
 
   gem.add_dependency 'devise', '>= 2.1.0'
   gem.add_dependency 'devise-encryptable', '>= 0.2.0'
-  gem.add_dependency 'argon2', '>= 0.1.4'
+  gem.add_dependency 'argon2', '~> 1.0'
 end