skippy.gemspec in skippy-0.4.1.a vs skippy.gemspec in skippy-0.4.2.a

@@ -26,11 +26,11 @@
 
   spec.add_dependency 'git', '~> 1.3'
   spec.add_dependency 'naturally', '~> 2.1'
   spec.add_dependency 'thor', '~> 0.19'
 
-  spec.add_development_dependency 'bundler', '~> 1.13'
-  spec.add_development_dependency 'rake', '~> 10.0'
+  spec.add_development_dependency 'bundler', '>= 1.15.0', '< 3.0'
+  spec.add_development_dependency 'rake', '~> 12.3.3'
   spec.add_development_dependency 'minitest', '~> 5.0'
   # TODO(thomthom): Need to lock to 2.3 because 2.4 fails with the custom
   # aruba build.
   spec.add_development_dependency 'cucumber', '~> 2.3.0'
   spec.add_development_dependency 'aruba', '~> 0.14.1'