diff --git a/simple_calendar.gemspec b/simple_calendar.gemspec
index 565bff8..274285d 100644
--- a/simple_calendar.gemspec
+++ b/simple_calendar.gemspec
@@ -1,20 +1,23 @@
 $:.push File.expand_path("../lib", __FILE__)
 require "simple_calendar/version"
 
-Gem::Specification.new do |s|
-  s.name = "simple_calendar"
-  s.version = SimpleCalendar::VERSION
-  s.authors = ["Chris Oliver"]
-  s.email = ["excid3@gmail.com"]
-  s.homepage = "https://github.com/excid3/simple_calendar"
-  s.summary = "A simple Rails calendar"
-  s.description = "A simple Rails calendar"
-  s.license = "MIT"
+Gem::Specification.new do |spec|
+  spec.name = "simple_calendar"
+  spec.version = SimpleCalendar::VERSION
+  spec.authors = ["Chris Oliver"]
+  spec.email = ["excid3@gmail.com"]
+  spec.homepage = "https://github.com/excid3/simple_calendar"
+  spec.summary = "A simple Rails calendar"
+  spec.description = "A simple Rails calendar"
+  spec.license = "MIT"
 
-  s.rubyforge_project = "simple_calendar"
+  spec.metadata["homepage_uri"] = spec.homepage
+  spec.metadata["source_code_uri"] = spec.homepage
+  spec.metadata["changelog_uri"] = "https://github.com/excid3/simple_calendar/blob/main/CHANGELOG.md"
 
-  s.files = `git ls-files`.split("\n")
-  s.require_paths = ["lib"]
+  spec.files = Dir.chdir(File.expand_path(__dir__)) do
+    Dir["{app,config,db,lib}/**/*", "MIT-LICENSE", "Rakefile", "README.md"]
+  end
 
-  s.add_dependency "rails", ">= 6.1"
+  spec.add_dependency "rails", ">= 6.1"
 end