diff --git a/shiyo.gemspec b/shiyo.gemspec
index 19ffc68..6403591 100644
--- a/shiyo.gemspec
+++ b/shiyo.gemspec
@@ -15,12 +15,9 @@ Gem::Specification.new do |spec|
   spec.homepage = "https://github.com/johnny-miyake/shiyo"
   spec.license = "MIT"
   spec.required_ruby_version = ">= 2.6.0"
-
-  # spec.metadata["allowed_push_host"] = "TODO: Set to your gem server 'https://example.com'"
-
   spec.metadata["homepage_uri"] = spec.homepage
-  # spec.metadata["source_code_uri"] = "TODO: Put your gem's public repo URL here."
-  # spec.metadata["changelog_uri"] = "TODO: Put your gem's CHANGELOG.md URL here."
+  spec.metadata["source_code_uri"] = "https://github.com/johnny-miyake/shiyo"
+  spec.metadata["changelog_uri"] = "https://github.com/johnny-miyake/shiyo/blob/master/CHANGELOG.md"
 
   # 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.
@@ -32,10 +29,4 @@ Gem::Specification.new do |spec|
   spec.bindir = "exe"
   spec.executables = spec.files.grep(%r{\Aexe/}) { |f| File.basename(f) }
   spec.require_paths = ["lib"]
-
-  # Uncomment to register a new dependency of your gem
-  # spec.add_dependency "example-gem", "~> 1.0"
-
-  # For more information and examples about making a new gem, check out our
-  # guide at: https://bundler.io/guides/creating_gem.html
 end