phonie.gemspec in phonie-2.1.2 vs phonie.gemspec in phonie-3.0.0

@@ -14,10 +14,9 @@
 
   s.files         = `git ls-files`.split("\n")
   s.test_files    = `git ls-files -- {test,spec,features}/*`.split("\n")
   s.require_paths = ["lib"]
 
-  s.add_dependency 'activemodel'
-
+  s.add_development_dependency 'activemodel'
   s.add_development_dependency 'rake'
   s.add_development_dependency 'nokogiri'
 end