diff --git a/types/react-modal/index.d.ts b/types/react-modal/index.d.ts
index d04a6b5c18..2daa2a1a6f 100644
--- a/types/react-modal/index.d.ts
+++ b/types/react-modal/index.d.ts
@@ -1,4 +1,4 @@
-// Type definitions for react-modal 3.6
+// Type definitions for react-modal 3.8.1
 // Project: https://github.com/reactjs/react-modal
 // Definitions by: Rajab Shakirov <https://github.com/radziksh>,
 //                 Drew Noakes <https://github.com/drewnoakes>,
@@ -64,6 +64,9 @@ declare namespace ReactModal {
         /* Function that will be run after the modal has opened. */
         onAfterOpen?(): void;
 
+        /* Function that will be run after the modal has closed. */
+        onAfterClose?(): void;
+
         /* Function that will be run when the modal is requested to be closed, prior to actually closing. */
         onRequestClose?(event: (MouseEvent | KeyboardEvent)): void;
 
diff --git a/types/react-modal/react-modal-tests.tsx b/types/react-modal/react-modal-tests.tsx
index 8dfd6d35e3..96c18ea881 100644
--- a/types/react-modal/react-modal-tests.tsx
+++ b/types/react-modal/react-modal-tests.tsx
@@ -12,6 +12,7 @@ class ExampleOfUsingReactModal extends React.Component {
   overlayRef: HTMLDivElement;
   render() {
     const onAfterOpenFn = () => { };
+    const onAfterCloseFn = () => { };
     const onRequestCloseFn = () => { };
     const customStyle = {
       overlay: {
@@ -59,6 +60,7 @@ class ExampleOfUsingReactModal extends React.Component {
       <ReactModal
         isOpen={true}
         onAfterOpen={onAfterOpenFn}
+        onAfterClose={onAfterCloseFn}
         onRequestClose={onRequestCloseFn}
         contentLabel="demo label"
         closeTimeoutMS={1000}