diff --git a/picopackage.gemspec b/picopackage.gemspec
index 2ee6c15..1e815f0 100644
--- a/picopackage.gemspec
+++ b/picopackage.gemspec
@@ -16,9 +16,9 @@ Gem::Specification.new do |spec|
 
   # 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["homepage_uri"] = spec.homepage
+  spec.metadata["source_code_uri"] = "https://git.booko.info/PicoPackage/picopackage"
+  spec.metadata["changelog_uri"] = "https://git.booko.info/PicoPackage/picopackage/src/branch/main/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.