middleman-webp.gemspec in middleman-webp-0.1.0 vs middleman-webp.gemspec in middleman-webp-0.2.0

@@ -21,6 +21,7 @@
   spec.add_dependency "middleman-core", "~> 3.2.0"
 
   spec.add_development_dependency "bundler", "~> 1.5"
   spec.add_development_dependency "rake"
   spec.add_development_dependency "simplecov"
+  spec.add_development_dependency "mocha"
 end