diff --git a/CONTRIBUTING.md b/CONTRIBUTING.md
index 3acb80b0..3b6d0c15 100644
--- a/CONTRIBUTING.md
+++ b/CONTRIBUTING.md
@@ -4,7 +4,7 @@ We love contributions from our community of users! This document explains our gu
 
 #### Environment setup
 
-0. Install Node.js (4 or newer) and npm (3 or newer).
+0. Install Node.js (6 or newer) and npm (3 or newer).
 1. Make a fork of Swagger-UI on GitHub, then clone your fork to your machine.
 2. Run `npm install` in your Swagger-UI directory.
 3. Run `npm run dev`. `localhost:3200` should open automatically.
diff --git a/package.json b/package.json
index dd30067d..3987317b 100644
--- a/package.json
+++ b/package.json
@@ -61,13 +61,13 @@
     "react-addons-perf": "^15.4.0",
     "react-addons-shallow-compare": "0.14.8",
     "react-addons-test-utils": "^15.6.2",
-    "react-collapse": "2.3.1",
+    "react-collapse": "^4.0.3",
     "react-dom": "^15.6.2",
     "react-height": "^2.0.0",
     "react-hot-loader": "1.3.1",
     "react-immutable-proptypes": "2.1.0",
     "react-markdown": "^2.5.0",
-    "react-motion": "0.4.4",
+    "react-motion": "^0.5.2",
     "react-object-inspector": "0.2.1",
     "react-redux": "^4.x.x",
     "react-split-pane": "0.1.57",
diff --git a/src/core/components/content-type.jsx b/src/core/components/content-type.jsx
index 4a5e7349..6f81f671 100644
--- a/src/core/components/content-type.jsx
+++ b/src/core/components/content-type.jsx
@@ -37,7 +37,7 @@ export default class ContentType extends React.Component {
 
     return (
       <div className={ "content-type-wrapper " + ( className || "" ) }>
-        <select className="content-type" value={value} onChange={this.onChangeWrapper} >
+        <select className="content-type" value={value || ""} onChange={this.onChangeWrapper} >
           { contentTypes.map( (val) => {
             return <option key={ val } value={ val }>{ val }</option>
           }).toArray()}
diff --git a/src/core/components/debug.jsx b/src/core/components/debug.jsx
index 6cb7d5d7..382f2cac 100644
--- a/src/core/components/debug.jsx
+++ b/src/core/components/debug.jsx
@@ -1,6 +1,6 @@
 import React from "react"
 import PropTypes from "prop-types"
-import Collapse from "react-collapse"
+import { Collapse } from "react-collapse"
 import { presets } from "react-motion"
 import ObjectInspector from "react-object-inspector"
 import Perf from "react-addons-perf"
diff --git a/src/core/components/errors.jsx b/src/core/components/errors.jsx
index bea01ba9..c72dd2fd 100644
--- a/src/core/components/errors.jsx
+++ b/src/core/components/errors.jsx
@@ -1,7 +1,7 @@
 import React from "react"
 import PropTypes from "prop-types"
 import { List } from "immutable"
-import Collapse from "react-collapse"
+import { Collapse } from "react-collapse"
 
 export default class Errors extends React.Component {
 
diff --git a/src/core/components/layout-utils.jsx b/src/core/components/layout-utils.jsx
index f80e0c90..d1adfeb1 100644
--- a/src/core/components/layout-utils.jsx
+++ b/src/core/components/layout-utils.jsx
@@ -1,6 +1,6 @@
 import React from "react"
 import PropTypes from "prop-types"
-import OriCollapse from "react-collapse"
+import { Collapse as OriCollapse } from "react-collapse"
 
 function xclass(...args) {
   return args.filter(a => !!a).join(" ").trim()
diff --git a/src/core/components/model.jsx b/src/core/components/model.jsx
index 73163388..3d5de80f 100644
--- a/src/core/components/model.jsx
+++ b/src/core/components/model.jsx
@@ -1,7 +1,7 @@
-import React, { Component } from "react"
+import React, { PureComponent } from "react"
 import PropTypes from "prop-types"
 
-export default class Model extends Component {
+export default class Model extends PureComponent {
   static propTypes = {
     schema: PropTypes.object.isRequired,
     getComponent: PropTypes.func.isRequired,
@@ -35,7 +35,7 @@ export default class Model extends Component {
     const PrimitiveModel = getComponent("PrimitiveModel")
     let type = "object"
     let $$ref = schema && schema.get("$$ref")
-    
+
     // If we weren't passed a `name` but have a ref, grab the name from the ref
     if ( !name && $$ref ) {
       name = this.getModelName( $$ref )
@@ -44,11 +44,11 @@ export default class Model extends Component {
     if ( !schema && $$ref ) {
       schema = this.getRefSchema( name )
     }
-    
+
     const deprecated = specSelectors.isOAS3() && schema.get("deprecated")
     isRef = isRef !== undefined ? isRef : !!$$ref
     type = schema && schema.get("type") || type
-    
+
     switch(type) {
       case "object":
         return <ObjectModel
diff --git a/src/core/plugins/oas3/components/request-body.jsx b/src/core/plugins/oas3/components/request-body.jsx
index 7094e068..5b20a50c 100644
--- a/src/core/plugins/oas3/components/request-body.jsx
+++ b/src/core/plugins/oas3/components/request-body.jsx
@@ -50,7 +50,7 @@ RequestBody.propTypes = {
   getComponent: PropTypes.func.isRequired,
   getConfigs: PropTypes.func.isRequired,
   specSelectors: PropTypes.object.isRequired,
-  contentType: PropTypes.string.isRequired,
+  contentType: PropTypes.string,
   isExecute: PropTypes.bool.isRequired,
   onChange: PropTypes.func.isRequired
 }
diff --git a/src/core/plugins/oas3/wrap-components/parameters.jsx b/src/core/plugins/oas3/wrap-components/parameters.jsx
index a825f530..ac61e90f 100644
--- a/src/core/plugins/oas3/wrap-components/parameters.jsx
+++ b/src/core/plugins/oas3/wrap-components/parameters.jsx
@@ -22,6 +22,7 @@ class Parameters extends Component {
     specActions: PropTypes.object.isRequired,
     operation: PropTypes.object.isRequired,
     getComponent: PropTypes.func.isRequired,
+    getConfigs: PropTypes.func.isRequired,
     specSelectors: PropTypes.object.isRequired,
     oas3Actions: PropTypes.object.isRequired,
     oas3Selectors: PropTypes.object.isRequired,
@@ -86,6 +87,7 @@ class Parameters extends Component {
 
       fn,
       getComponent,
+      getConfigs,
       specSelectors,
       oas3Actions,
       oas3Selectors,
@@ -137,6 +139,7 @@ class Parameters extends Component {
                     eachMap(parameters, (parameter) => (
                       <ParameterRow fn={ fn }
                         getComponent={ getComponent }
+                        getConfigs={ getConfigs }
                         param={ parameter }
                         key={ parameter.get( "name" ) }
                         onChange={ this.onChange }
diff --git a/src/plugins/topbar/topbar.jsx b/src/plugins/topbar/topbar.jsx
index 211ab5b8..9c18ad08 100644
--- a/src/plugins/topbar/topbar.jsx
+++ b/src/plugins/topbar/topbar.jsx
@@ -1,4 +1,4 @@
-import React from "react"
+import React, { cloneElement } from "react"
 import PropTypes from "prop-types"
 
 //import "./topbar.less"
@@ -134,7 +134,7 @@ export default class Topbar extends React.Component {
               <span>swagger</span>
             </Link>
             <form className="download-url-wrapper" onSubmit={formOnSubmit}>
-              {control}
+              {control.map((el, i) => cloneElement(el, { key: i }))}
             </form>
           </div>
         </div>
diff --git a/test/components/object-model.js b/test/components/object-model.js
new file mode 100644
index 00000000..d926d04c
--- /dev/null
+++ b/test/components/object-model.js
@@ -0,0 +1,63 @@
+import React from "react"
+import expect from "expect"
+import { shallow } from "enzyme"
+import { fromJS } from "immutable"
+import ObjectModel from "components/object-model"
+import ModelExample from "components/model-example"
+import Immutable from "immutable"
+import Model from "components/model"
+import ModelCollapse from "components/model-collapse"
+import { inferSchema } from "corePlugins/samples/fn"
+
+describe("<ObjectModel />", function() {
+    const dummyComponent = () => null
+    const components = {
+      "JumpToPath" : dummyComponent,
+      "Markdown" : dummyComponent,
+      "Model" : Model,
+      "ModelCollapse" : ModelCollapse
+    }
+    const props = {
+      getComponent: c => components[c],
+      isRef : false,
+      schema: Immutable.fromJS(
+        {
+          "properties": {
+            // Note reverse order: c, b, a
+            c: {
+              type: "integer",
+              name: "c"
+            },
+            b: {
+              type: "boolean",
+              name: "b"
+            },
+            a: {
+              type: "string",
+              name: "a"
+            }
+          }
+        }
+      ),
+      specSelectors: {
+        isOAS3(){
+          return false
+        }
+      },
+      className: "for-test"
+    }
+    it("renders a collapsible header", function(){
+      const wrapper = shallow(<ObjectModel {...props}/>)
+      const renderedModelCollapse = wrapper.find(ModelCollapse)
+      expect(renderedModelCollapse.length).toEqual(1)
+    })
+
+    it("renders the object properties in order", function() {
+        const wrapper = shallow(<ObjectModel {...props}/>)
+        const renderedModel = wrapper.find(Model)
+        expect(renderedModel.length).toEqual(3)
+        expect(renderedModel.get(0).props.schema.get("name")).toEqual("c")
+        expect(renderedModel.get(1).props.schema.get("name")).toEqual("b")
+        expect(renderedModel.get(2).props.schema.get("name")).toEqual("a")
+    })
+})