diff --git a/.rubocop.yml b/.rubocop.yml
index e38fece..1097e9d 100644
--- a/.rubocop.yml
+++ b/.rubocop.yml
@@ -20,3 +20,12 @@ Style/Documentation:
 
 Style/StringLiterals:
   EnforcedStyle: double_quotes
+
+Style/HashEachMethods:
+  Enabled: true
+
+Style/HashTransformKeys:
+  Enabled: true
+
+Style/HashTransformValues:
+  Enabled: true
diff --git a/fixturama.gemspec b/fixturama.gemspec
index d1eb24d..faa8166 100644
--- a/fixturama.gemspec
+++ b/fixturama.gemspec
@@ -1,15 +1,40 @@
+# frozen_string_literal: true
+
+require_relative "lib/fixturama/version"
+
 Gem::Specification.new do |gem|
   gem.name     = "fixturama"
-  gem.version  = "0.2.0"
-  gem.author   = "Andrew Kozin (nepalez)"
-  gem.email    = "andrew.kozin@gmail.com"
-  gem.homepage = "https://github.com/nepalez/fixturama"
+  gem.version  = Fixturama::VERSION
   gem.summary  = "A set of helpers to prettify specs with fixtures"
+  gem.description = <<~DESC
+    Use fixtures to extract verbosity from RSpec specifications:
+    - load data,
+    - stub classes, modules and constants,
+    - seed the database via FactoryBot.
+  DESC
+  gem.authors = ["Andrew Kozin (nepalez)"]
+
   gem.license  = "MIT"
+  gem.email    = "andrew.kozin@gmail.com"
+  gem.homepage = "https://github.com/nepalez/fixturama"
+  gem.metadata = {
+    "bug_tracker_uri" => "https://github.com/nepalez/fixturama/issues",
+    "changelog_uri" =>
+      "https://github.com/nepalez/fixturama/blob/master/CHANGELOG.md",
+    "documentation_uri" => "https://www.rubydocs.info/gems/fixturama",
+    "homepage_uri" => gem.homepage,
+    "source_code_uri" => "https://github.com/nepalez/fixturama"
+  }
 
-  gem.files            = `git ls-files`.split($INPUT_RECORD_SEPARATOR)
-  gem.test_files       = gem.files.grep(/^spec/)
+  gem.files = Dir["lib/**/*"]
   gem.extra_rdoc_files = Dir["README.md", "LICENSE", "CHANGELOG.md"]
+  gem.rdoc_options += [
+    "--title", "Fixturama - fixtures on steroids",
+    "--main", "README.md",
+    "--line-numbers",
+    "--inline-source",
+    "--quiet"
+  ]
 
   gem.required_ruby_version = ">= 2.2"
 
@@ -18,7 +43,7 @@ Gem::Specification.new do |gem|
   gem.add_runtime_dependency "hashie", "~> 3.0"
   gem.add_runtime_dependency "webmock", "~> 3.0"
 
-  gem.add_development_dependency "rake", "~> 10"
-  gem.add_development_dependency "rspec-its", "~> 1.0"
-  gem.add_development_dependency "rubocop", "~> 0.49"
+  gem.add_development_dependency "rake", "~> 13.0"
+  gem.add_development_dependency "rspec-its", "~> 1.3"
+  gem.add_development_dependency "rubocop", "~> 0.80"
 end
diff --git a/lib/fixturama/version.rb b/lib/fixturama/version.rb
new file mode 100644
index 0000000..ee98cb8
--- /dev/null
+++ b/lib/fixturama/version.rb
@@ -0,0 +1,3 @@
+module Fixturama
+  VERSION = "0.2.0"
+end