diff --git a/CHANGELOG.md b/CHANGELOG.md
index 313df636..242d9f81 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,3 +1,9 @@
+v3.9.1 - Sun, 14 Jul 2019 16:52:30 UTC
+--------------------------------------
+
+- [c747c24](../../commit/c747c24) [added] Added an id prop, applied to the modal dialog (content) (#765)
+
+
 v3.8.2 - Sun, 30 Jun 2019 20:48:21 UTC
 --------------------------------------
 
diff --git a/bower.json b/bower.json
index 424bbc89..9e74b43b 100644
--- a/bower.json
+++ b/bower.json
@@ -1,6 +1,6 @@
 {
   "name": "react-modal",
-  "version": "3.8.2",
+  "version": "3.9.1",
   "homepage": "https://github.com/reactjs/react-modal",
   "authors": [
     "Ryan Florence",
diff --git a/dist/react-modal.js b/dist/react-modal.js
index 1b14aac6..6e7f382b 100644
--- a/dist/react-modal.js
+++ b/dist/react-modal.js
@@ -2058,6 +2058,7 @@ var ModalPortal = function (_Component) {
     key: "render",
     value: function render() {
       var _props2 = this.props,
+          id = _props2.id,
           className = _props2.className,
           overlayClassName = _props2.overlayClassName,
           defaultStyles = _props2.defaultStyles;
@@ -2077,6 +2078,7 @@ var ModalPortal = function (_Component) {
         _react2.default.createElement(
           "div",
           _extends({
+            id: id,
             ref: this.setContentRef,
             style: _extends({}, contentStyles, this.props.style.content),
             className: this.buildClassName("content", className),
@@ -2137,6 +2139,7 @@ ModalPortal.propTypes = {
   shouldCloseOnEsc: _propTypes2.default.bool,
   overlayRef: _propTypes2.default.func,
   contentRef: _propTypes2.default.func,
+  id: _propTypes2.default.string,
   testId: _propTypes2.default.string
 };
 exports.default = ModalPortal;
diff --git a/dist/react-modal.min.js b/dist/react-modal.min.js
index 3cebc64d..4e04280b 100644
--- a/dist/react-modal.min.js
+++ b/dist/react-modal.min.js
@@ -22,7 +22,7 @@ object-assign
 (c) Sindre Sorhus
 @license MIT
 */
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s(t,e),c(t,[{key:"componentDidMount",value:function(){this.props.isOpen&&this.open()}},{key:"componentDidUpdate",value:function(e,t){e.bodyOpenClassName!==this.props.bodyOpenClassName&&console.warn('React-Modal: "bodyOpenClassName" prop has been modified. This may cause unexpected behavior when multiple modals are open.'),e.htmlOpenClassName!==this.props.htmlOpenClassName&&console.warn('React-Modal: "htmlOpenClassName" prop has been modified. This may cause unexpected behavior when multiple modals are open.'),this.props.isOpen&&!e.isOpen?this.open():!this.props.isOpen&&e.isOpen&&this.close(),this.props.shouldFocusAfterRender&&this.state.isOpen&&!t.isOpen&&this.focusContent()}},{key:"componentWillUnmount",value:function(){this.afterClose(),clearTimeout(this.closeTimer)}},{key:"beforeOpen",value:function(){var e=this.props,t=e.appElement,n=e.ariaHideApp,o=e.htmlOpenClassName,r=e.bodyOpenClassName;r&&C.add(document.body,r),o&&C.add(document.getElementsByTagName("html")[0],o),n&&(M+=1,g.hide(t))}},{key:"render",value:function(){var e=this.props,t=e.id,n=e.className,o=e.overlayClassName,r=e.defaultStyles,a=n?{}:r.content,i=o?{}:r.overlay;return this.shouldBeClosed()?null:p.default.createElement("div",{ref:this.setOverlayRef,className:this.buildClassName("overlay",o),style:u({},i,this.props.style.overlay),onClick:this.handleOverlayOnClick,onMouseDown:this.handleOverlayOnMouseDown},p.default.createElement("div",u({id:t,ref:this.setContentRef,style:u({},a,this.props.style.content),className:this.buildClassName("content",n),tabIndex:"-1",onKeyDown:this.handleKeyDown,onMouseDown:this.handleContentOnMouseDown,onMouseUp:this.handleContentOnMouseUp,onClick:this.handleContentOnClick,role:this.props.role,"aria-label":this.props.contentLabel},this.attributesFromObject("aria",this.props.aria||{}),this.attributesFromObject("data",this.props.data||{}),{"data-testid":this.props.testId}),this.props.children))}}]),t}(f.Component);x.defaultProps={style:{overlay:{},content:{}},defaultStyles:{}},x.propTypes={isOpen:y.default.bool.isRequired,defaultStyles:y.default.shape({content:y.default.object,overlay:y.default.object}),style:y.default.shape({content:y.default.object,overlay:y.default.object}),className:y.default.oneOfType([y.default.string,y.default.object]),overlayClassName:y.default.oneOfType([y.default.string,y.default.object]),bodyOpenClassName:y.default.string,htmlOpenClassName:y.default.string,ariaHideApp:y.default.bool,appElement:y.default.instanceOf(_.default),onAfterOpen:y.default.func,onAfterClose:y.default.func,onRequestClose:y.default.func,closeTimeoutMS:y.default.number,shouldFocusAfterRender:y.default.bool,shouldCloseOnOverlayClick:y.default.bool,shouldReturnFocusAfterClose:y.default.bool,role:y.default.string,contentLabel:y.default.string,aria:y.default.object,data:y.default.object,children:y.default.node,shouldCloseOnEsc:y.default.bool,overlayRef:y.default.func,contentRef:y.default.func,id:y.default.string,testId:y.default.string},t.default=x,e.exports=t.default},function(e,t,n){"use 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o=1;o<n;o++)t[o-1]=arguments[o];var r=0,a="Warning: "+e.replace(/%s/g,function(){return t[r++]});"undefined"!=typeof console&&console.error(a);try{throw new Error(a)}catch(e){}};o=function(e,t,n){var o=arguments.length;n=new Array(o>2?o-2:0);for(var a=2;a<o;a++)n[a-2]=arguments[a];if(void 0===t)throw new Error("`warning(condition, format, ...args)` requires a warning message argument");e||r.apply(null,[t].concat(n))},e.exports=o},function(e,t,n){var o;/*!
   Copyright (c) 2015 Jed Watson.
   Based on code that is Copyright 2013-2015, Facebook, Inc.
   All rights reserved.
diff --git a/package.json b/package.json
index 73c3b8f2..03547fc4 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "react-modal",
-  "version": "3.8.2",
+  "version": "3.9.1",
   "description": "Accessible modal dialog component for React.JS",
   "main": "./lib/index.js",
   "module": "./lib/index.js",