diff --git a/demo/src/index.js b/demo/src/index.js
index bd196a99..c4d41e34 100644
--- a/demo/src/index.js
+++ b/demo/src/index.js
@@ -2,6 +2,7 @@ import React from 'react';
 import ReactDOM from 'react-dom';
 import App from './App';
 // import registerServiceWorker from './registerServiceWorker';
+import './polyfill'
 
 ReactDOM.render(<App />, document.querySelector('#demo'))
 // ReactDOM.render(<App />, document.getElementById('root'));
diff --git a/demo/src/polyfill.js b/demo/src/polyfill.js
new file mode 100644
index 00000000..4dda5837
--- /dev/null
+++ b/demo/src/polyfill.js
@@ -0,0 +1,24 @@
+// IE11 polyfills
+
+if (!Array.prototype.find) {
+  Array.prototype.find = function(predicate) {
+    if (this == null) {
+      throw new TypeError('Array.prototype.find called on null or undefined');
+    }
+    if (typeof predicate !== 'function') {
+      throw new TypeError('predicate must be a function');
+    }
+    const list = Object(this);
+    const length = list.length >>> 0;
+    const thisArg = arguments[1];
+    let value;
+
+    for (let i = 0; i < length; i++) {
+      value = list[i];
+      if (predicate.call(thisArg, value, i, list)) {
+        return value;
+      }
+    }
+    return undefined;
+  };
+}
diff --git a/package.json b/package.json
index a2f8dee9..eeed3eb6 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@coreui/react",
-  "version": "2.0.0-beta.1",
+  "version": "2.0.0-beta.2",
   "description": "CoreUI React Bootstrap 4 components",
   "main": "lib/index.js",
   "module": "es/index.js",
@@ -21,7 +21,7 @@
     "lint": "eslint src"
   },
   "dependencies": {
-    "@coreui/coreui": "^2.0.0-beta.10",
+    "@coreui/coreui": "^2.0.0-rc.1",
     "bootstrap": "^4.1.0",
     "classnames": "^2.2.5",
     "prop-types": "^15.6.1",
@@ -45,7 +45,7 @@
     "nwb": "^0.21.5",
     "react": "^16.3.2",
     "react-dom": "^16.3.2",
-    "sinon": "^4.5.0"
+    "sinon": "^5.0.1"
   },
   "author": "Łukasz Holeczek",
   "homepage": "http://coreui.io",