diff --git a/packages/redux-devtools-cli/package.json b/packages/redux-devtools-cli/package.json
index b2159169..aa0c0c2b 100644
--- a/packages/redux-devtools-cli/package.json
+++ b/packages/redux-devtools-cli/package.json
@@ -58,7 +58,7 @@
     "lodash": "^4.17.21",
     "minimist": "^1.2.5",
     "morgan": "^1.10.0",
-    "open": "^7.4.2",
+    "open": "^8.2.1",
     "react": "^16.14.0",
     "react-dom": "^16.14.0",
     "semver": "^7.3.5",
diff --git a/packages/redux-devtools-cli/src/bin/openApp.ts b/packages/redux-devtools-cli/src/bin/openApp.ts
index 5be253f9..f0b31f51 100644
--- a/packages/redux-devtools-cli/src/bin/openApp.ts
+++ b/packages/redux-devtools-cli/src/bin/openApp.ts
@@ -3,7 +3,7 @@ import path from 'path';
 import spawn from 'cross-spawn';
 import { Options } from '../options';
 
-export default function openApp(app: boolean | string, options: Options) {
+export default async function openApp(app: true | string, options: Options) {
   if (app === true || app === 'electron') {
     try {
       const port = options.port ? `--port=${options.port}` : '';
@@ -31,9 +31,9 @@ export default function openApp(app: boolean | string, options: Options) {
     }
     return;
   }
-  // eslint-disable-next-line @typescript-eslint/no-floating-promises
-  open(
+
+  await open(
     `http://localhost:${options.port}/`,
-    app !== 'browser' ? { app: app as string } : undefined
+    app !== 'browser' ? { app: { name: app } } : undefined
   );
 }
diff --git a/packages/redux-devtools-cli/src/bin/redux-devtools.ts b/packages/redux-devtools-cli/src/bin/redux-devtools.ts
index dd8570eb..d63802e9 100644
--- a/packages/redux-devtools-cli/src/bin/redux-devtools.ts
+++ b/packages/redux-devtools-cli/src/bin/redux-devtools.ts
@@ -90,8 +90,8 @@ if (argv.injectserver) {
 // eslint-disable-next-line @typescript-eslint/no-floating-promises
 server(argv).then(function (r) {
   if (argv.open && argv.open !== 'false') {
-    r.on('ready', function () {
-      openApp(argv.open, options);
+    r.on('ready', async function () {
+      await openApp(argv.open, options);
     });
   }
 });
diff --git a/packages/redux-devtools-cli/src/index.ts b/packages/redux-devtools-cli/src/index.ts
index 2421ec6e..0ec675ce 100644
--- a/packages/redux-devtools-cli/src/index.ts
+++ b/packages/redux-devtools-cli/src/index.ts
@@ -14,7 +14,7 @@ export interface ExtendedOptions extends Options {
 
 export default function (argv: { [arg: string]: any }): Promise<{
   portAlreadyUsed?: boolean;
-  on: (status: 'ready', cb: () => void) => void;
+  on: (status: 'ready', cb: (() => void) | (() => Promise<void>)) => void;
 }> {
   const options = Object.assign(getOptions(argv), {
     workerController: __dirname + '/worker.js',
diff --git a/yarn.lock b/yarn.lock
index c418012a..42f445ca 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -4954,7 +4954,7 @@ __metadata:
     minimist: ^1.2.5
     morgan: ^1.10.0
     ncp: ^2.0.0
-    open: ^7.4.2
+    open: ^8.2.1
     react: ^16.14.0
     react-dom: ^16.14.0
     semver: ^7.3.5
@@ -22783,7 +22783,7 @@ fsevents@^1.2.7:
   languageName: node
   linkType: hard
 
-"open@npm:^7.0.2, open@npm:^7.0.3, open@npm:^7.4.2":
+"open@npm:^7.0.2, open@npm:^7.0.3":
   version: 7.4.2
   resolution: "open@npm:7.4.2"
   dependencies:
@@ -22793,7 +22793,7 @@ fsevents@^1.2.7:
   languageName: node
   linkType: hard
 
-"open@npm:^8.0.9":
+"open@npm:^8.0.9, open@npm:^8.2.1":
   version: 8.2.1
   resolution: "open@npm:8.2.1"
   dependencies: