diff --git a/lib/peatio/nexbit.rb b/lib/peatio/nexbit.rb
index 673890b..df0ebfb 100644
--- a/lib/peatio/nexbit.rb
+++ b/lib/peatio/nexbit.rb
@@ -3,7 +3,7 @@
 require "peatio"
 
 module Peatio
-  module CPUchain
+  module Nexbit
     require "bigdecimal"
     require "bigdecimal/util"
 
diff --git a/lib/peatio/nexbit/version.rb b/lib/peatio/nexbit/version.rb
index dca6382..af1164a 100644
--- a/lib/peatio/nexbit/version.rb
+++ b/lib/peatio/nexbit/version.rb
@@ -1,5 +1,5 @@
 module Peatio
   module Nexbit
-    VERSION = "0.1.1".freeze
+    VERSION = "0.1.2".freeze
   end
 end
diff --git a/peatio-nexbit.gemspec b/peatio-nexbit.gemspec
index 8b06803..a543838 100644
--- a/peatio-nexbit.gemspec
+++ b/peatio-nexbit.gemspec
@@ -16,6 +16,17 @@ Gem::Specification.new do |spec|
 
   # Specify which files should be added to the gem when it is released.
   # The `git ls-files -z` loads the files in the RubyGem that have been added into git.
+ if spec.respond_to?(:metadata)
+
+    spec.metadata["homepage_uri"] = spec.homepage
+    spec.metadata["source_code_uri"] = "https://github.com/ndexnetwork/peatio-ndex"
+    spec.metadata["changelog_uri"] = "https://github.com/ndexnetwork/peatio-ndex/blob/master/CHANGELOG.md"
+  else
+    raise "RubyGems 2.0 or newer is required to protect against " \
+      "public gem pushes."
+  end
+  # Specify which files should be added to the gem when it is released.
+  # The `git ls-files -z` loads the files in the RubyGem that have been added into git.
   spec.files         = Dir.chdir(File.expand_path('..', __FILE__)) do
     `git ls-files -z`.split("\x0").reject { |f| f.match(%r{^(test|spec|features)/}) }
   end