diff --git a/types/node-notifier/index.d.ts b/types/node-notifier/index.d.ts
index 7846a9b24683cc6..ad2329f658dd72a 100644
--- a/types/node-notifier/index.d.ts
+++ b/types/node-notifier/index.d.ts
@@ -1,4 +1,4 @@
-// Type definitions for node-notifier 5.4.0
+// Type definitions for node-notifier 5.4.1
 // Project: https://github.com/mikaelbr/node-notifier
 // Definitions by: Qubo <https://github.com/tkQubo>
 //                 Lorenzo Rapetti <https://github.com/loryman>
@@ -100,7 +100,7 @@ declare module "node-notifier/notifiers/notificationcenter" {
              * The amount of seconds before the notification closes.
              * Takes precedence over wait if both are defined.
              */
-            timeout?: number;
+            timeout?: number | false;
             /** Label for cancel button */
             closeLabel?: string;
             /** Action label or list of labels in case of dropdown. */
diff --git a/types/node-notifier/node-notifier-tests.ts b/types/node-notifier/node-notifier-tests.ts
index 6162196c865a8b6..d5b49e5f73971ec 100644
--- a/types/node-notifier/node-notifier-tests.ts
+++ b/types/node-notifier/node-notifier-tests.ts
@@ -15,6 +15,10 @@ notifier.notify({
 }, function (err: any, response: any) {
     // response is response from notification
 });
+notifier.notify({
+    message: 'Hello from node, Mr. User!',
+    timeout: false
+});
 
 notifier.on('click', function (notifierObject: any, options: any) {
     // Happens if `wait: true` and user clicks notification