diff --git a/rails-reverse-proxy.gemspec b/rails-reverse-proxy.gemspec
index 4d24023..09faede 100644
--- a/rails-reverse-proxy.gemspec
+++ b/rails-reverse-proxy.gemspec
@@ -2,18 +2,18 @@
 # DO NOT EDIT THIS FILE DIRECTLY
 # Instead, edit Jeweler::Tasks in Rakefile, and run 'rake gemspec'
 # -*- encoding: utf-8 -*-
-# stub: rails-reverse-proxy 0.9.1 ruby lib
+# stub: rails-reverse-proxy 0.9.2 ruby lib
 
 Gem::Specification.new do |s|
-  s.name = "rails-reverse-proxy"
-  s.version = "0.9.1"
+  s.name = "rails-reverse-proxy".freeze
+  s.version = "0.9.2"
 
-  s.required_rubygems_version = Gem::Requirement.new(">= 0") if s.respond_to? :required_rubygems_version=
-  s.require_paths = ["lib"]
-  s.authors = ["James Hu"]
-  s.date = "2017-07-12"
-  s.description = "Reverse proxy for Ruby on Rails"
-  s.email = "hello@james.hu"
+  s.required_rubygems_version = Gem::Requirement.new(">= 0".freeze) if s.respond_to? :required_rubygems_version=
+  s.require_paths = ["lib".freeze]
+  s.authors = ["James Hu".freeze]
+  s.date = "2018-04-18"
+  s.description = "Reverse proxy for Ruby on Rails".freeze
+  s.email = "hello@james.hu".freeze
   s.extra_rdoc_files = [
     "LICENSE",
     "README.md"
@@ -33,45 +33,45 @@ Gem::Specification.new do |s|
     "lib/reverse_proxy/controller.rb",
     "rails-reverse-proxy.gemspec"
   ]
-  s.homepage = "http://github.com/axsuul/rails-reverse-proxy"
-  s.licenses = ["MIT"]
-  s.rubygems_version = "2.4.5"
-  s.summary = "Reverse proxy for Ruby on Rails"
+  s.homepage = "http://github.com/axsuul/rails-reverse-proxy".freeze
+  s.licenses = ["MIT".freeze]
+  s.rubygems_version = "2.5.2".freeze
+  s.summary = "Reverse proxy for Ruby on Rails".freeze
 
   if s.respond_to? :specification_version then
     s.specification_version = 4
 
     if Gem::Version.new(Gem::VERSION) >= Gem::Version.new('1.2.0') then
-      s.add_runtime_dependency(%q<rails>, [">= 0"])
-      s.add_runtime_dependency(%q<rack>, [">= 0"])
-      s.add_runtime_dependency(%q<rack-proxy>, [">= 0"])
-      s.add_runtime_dependency(%q<addressable>, [">= 0"])
-      s.add_development_dependency(%q<shoulda>, [">= 0"])
-      s.add_development_dependency(%q<rdoc>, ["~> 3.12"])
-      s.add_development_dependency(%q<bundler>, ["~> 1.0"])
-      s.add_development_dependency(%q<jeweler>, ["~> 2.1.2"])
-      s.add_development_dependency(%q<simplecov>, [">= 0"])
+      s.add_runtime_dependency(%q<rails>.freeze, [">= 0"])
+      s.add_runtime_dependency(%q<rack>.freeze, [">= 0"])
+      s.add_runtime_dependency(%q<rack-proxy>.freeze, [">= 0"])
+      s.add_runtime_dependency(%q<addressable>.freeze, [">= 0"])
+      s.add_development_dependency(%q<shoulda>.freeze, [">= 0"])
+      s.add_development_dependency(%q<rdoc>.freeze, ["~> 3.12"])
+      s.add_development_dependency(%q<bundler>.freeze, ["~> 1.0"])
+      s.add_development_dependency(%q<jeweler>.freeze, ["~> 2.1.2"])
+      s.add_development_dependency(%q<simplecov>.freeze, [">= 0"])
     else
-      s.add_dependency(%q<rails>, [">= 0"])
-      s.add_dependency(%q<rack>, [">= 0"])
-      s.add_dependency(%q<rack-proxy>, [">= 0"])
-      s.add_dependency(%q<addressable>, [">= 0"])
-      s.add_dependency(%q<shoulda>, [">= 0"])
-      s.add_dependency(%q<rdoc>, ["~> 3.12"])
-      s.add_dependency(%q<bundler>, ["~> 1.0"])
-      s.add_dependency(%q<jeweler>, ["~> 2.1.2"])
-      s.add_dependency(%q<simplecov>, [">= 0"])
+      s.add_dependency(%q<rails>.freeze, [">= 0"])
+      s.add_dependency(%q<rack>.freeze, [">= 0"])
+      s.add_dependency(%q<rack-proxy>.freeze, [">= 0"])
+      s.add_dependency(%q<addressable>.freeze, [">= 0"])
+      s.add_dependency(%q<shoulda>.freeze, [">= 0"])
+      s.add_dependency(%q<rdoc>.freeze, ["~> 3.12"])
+      s.add_dependency(%q<bundler>.freeze, ["~> 1.0"])
+      s.add_dependency(%q<jeweler>.freeze, ["~> 2.1.2"])
+      s.add_dependency(%q<simplecov>.freeze, [">= 0"])
     end
   else
-    s.add_dependency(%q<rails>, [">= 0"])
-    s.add_dependency(%q<rack>, [">= 0"])
-    s.add_dependency(%q<rack-proxy>, [">= 0"])
-    s.add_dependency(%q<addressable>, [">= 0"])
-    s.add_dependency(%q<shoulda>, [">= 0"])
-    s.add_dependency(%q<rdoc>, ["~> 3.12"])
-    s.add_dependency(%q<bundler>, ["~> 1.0"])
-    s.add_dependency(%q<jeweler>, ["~> 2.1.2"])
-    s.add_dependency(%q<simplecov>, [">= 0"])
+    s.add_dependency(%q<rails>.freeze, [">= 0"])
+    s.add_dependency(%q<rack>.freeze, [">= 0"])
+    s.add_dependency(%q<rack-proxy>.freeze, [">= 0"])
+    s.add_dependency(%q<addressable>.freeze, [">= 0"])
+    s.add_dependency(%q<shoulda>.freeze, [">= 0"])
+    s.add_dependency(%q<rdoc>.freeze, ["~> 3.12"])
+    s.add_dependency(%q<bundler>.freeze, ["~> 1.0"])
+    s.add_dependency(%q<jeweler>.freeze, ["~> 2.1.2"])
+    s.add_dependency(%q<simplecov>.freeze, [">= 0"])
   end
 end