1 files changed, 19 insertions, 6 deletions
diff --git a/Library/Homebrew/utils/json.rb b/Library/Homebrew/utils/json.rb
index f52881c84..0548a5cb3 100644
--- a/Library/Homebrew/utils/json.rb
+++ b/Library/Homebrew/utils/json.rb
@@ -1,4 +1,4 @@
-require 'vendor/multi_json'
+require 'vendor/okjson'
 
 module Utils
   module JSON
@@ -7,15 +7,28 @@ module Utils
     Error = Class.new(StandardError)
 
     def load(str)
-      MultiJson.load(str)
-    rescue MultiJson::DecodeError => e
+      Vendor::OkJson.decode(str)
+    rescue Vendor::OkJson::Error => e
       raise Error, e.message
     end
 
     def dump(obj)
-      MultiJson.dump(obj)
-    rescue MultiJson::EncodeError => e
-      raise Error, e.message
+      Vendor::OkJson.encode(stringify_keys(obj))
+    end
+
+    def stringify_keys(obj)
+      case obj
+      when Array
+        obj.map { |val| stringify_keys(val) }
+      when Hash
+        obj.inject({}) do |result, (key, val)|
+          key = key.respond_to?(:to_s) ? key.to_s : key
+          val = stringify_keys(val)
+          result.merge!(key => val)
+        end
+      else
+        obj
+      end
     end
   end
 end