Rakefile in invoca-utils-0.4.1 vs Rakefile in invoca-utils-0.5.0

@@ -1,12 +1,15 @@
 #!/usr/bin/env rake
 # frozen_string_literal: true
 
 require "bundler/gem_tasks"
-require 'rake/testtask'
-require 'rake_test_warning_false'
+require 'rake'
 
-task default: :test
-
-Rake::TestTask.new do |t|
-  t.pattern = "test/**/*_test.rb"
+desc "run rspec unit tests"
+begin
+  require 'rspec/core/rake_task'
+  RSpec::Core::RakeTask.new(:rspec) do |rspec_task|
+    rspec_task.pattern = "spec/**{,/*/**}/*_spec.rb"
+  end
 end
+
+task default: :rspec