r_nlp.gemspec in r_nlp-0.1.5 vs r_nlp.gemspec in r_nlp-0.1.6

@@ -17,9 +17,9 @@
   spec.files         = `git ls-files -z`.split("\x0").reject { |f| f.match(%r{^(test|spec|features)/}) }
   spec.bindir        = "exe"
   spec.executables   = spec.files.grep(%r{^exe/}) { |f| File.basename(f) }
   spec.require_paths = ["lib"]
 
-  spec.add_dependency "natto", "~> 0.9.7"
+  spec.add_runtime_dependency "natto", "~> 0.9.7"
   spec.add_development_dependency "bundler", "~> 1.8"
   spec.add_development_dependency "rake", "~> 10.0"
 end