niceql.gemspec in niceql-0.1.2 vs niceql.gemspec in niceql-0.1.3

@@ -28,10 +28,14 @@
   end
   spec.bindir        = "exe"
   spec.executables   = spec.files.grep(%r{^exe/}) { |f| File.basename(f) }
   spec.require_paths = ["lib"]
 
-  spec.add_development_dependency "bundler", "~> 1.15"
-  spec.add_development_dependency "rake", "~> 10.0"
+  spec.required_ruby_version = '>= 2.3'
+  spec.add_development_dependency "bundler", ">= 1"
+  spec.add_development_dependency "rake", ">= 12.3.3"
   spec.add_development_dependency "minitest", "~> 5.0"
 
+  spec.add_development_dependency "differ"
+  spec.add_development_dependency "pry-byebug"
+  spec.add_development_dependency "benchmark-ips"
 end