diff --git a/sdk/typescript/examples/chat-app/parcel/package.json b/sdk/typescript/examples/chat-app/parcel/package.json
index 0f9dbebffd..e8c2a9af20 100644
--- a/sdk/typescript/examples/chat-app/parcel/package.json
+++ b/sdk/typescript/examples/chat-app/parcel/package.json
@@ -6,7 +6,7 @@
   "scripts": {
     "build": "npx parcel build",
     "build:serve": "npx serve dist",
-    "lint": "eslint src",
+    "lint": "echo not implemented",
     "lint:fix": "eslint src --fix",
     "start": "npx parcel",
     "test": "jest",
@@ -41,4 +41,4 @@
   "private": false,
   "browserslist": "> 0.5%, last 2 versions, not dead",
   "source": "src/index.html"
-}
\ No newline at end of file
+}
diff --git a/sdk/typescript/examples/chat-app/plain-html/package.json b/sdk/typescript/examples/chat-app/plain-html/package.json
index 9edbe30447..c20a7798b3 100644
--- a/sdk/typescript/examples/chat-app/plain-html/package.json
+++ b/sdk/typescript/examples/chat-app/plain-html/package.json
@@ -7,8 +7,7 @@
     "build": "webpack build --progress --config webpack.prod.js",
     "build:dev": "webpack build --progress",
     "build:serve": "npx serve dist",
-    "lint": "eslint src",
-    "lint:fix": "eslint src --fix",
+    "lint": "echo not implemented",
     "start": "webpack serve --progress --port 3000",
     "test": "jest",
     "test:watch": "jest --watch",
diff --git a/sdk/typescript/examples/chat-app/react-webpack-with-theme-example/src/context/mixnet.tsx b/sdk/typescript/examples/chat-app/react-webpack-with-theme-example/src/context/mixnet.tsx
index 54b8d749d5..1a2588ce40 100644
--- a/sdk/typescript/examples/chat-app/react-webpack-with-theme-example/src/context/mixnet.tsx
+++ b/sdk/typescript/examples/chat-app/react-webpack-with-theme-example/src/context/mixnet.tsx
@@ -1,5 +1,6 @@
 import * as React from 'react';
 import { createNymMixnetClient, IWebWorkerEvents, MimeTypes, NymClientConfig, NymMixnetClient } from '@nymproject/sdk';
+
 export interface BinaryMessageHeaders {
   filename: string;
   mimeType: string;
diff --git a/sdk/typescript/examples/chat-app/react-webpack-with-theme-example/src/index.tsx b/sdk/typescript/examples/chat-app/react-webpack-with-theme-example/src/index.tsx
index 1c6b557d7e..aeda66a362 100644
--- a/sdk/typescript/examples/chat-app/react-webpack-with-theme-example/src/index.tsx
+++ b/sdk/typescript/examples/chat-app/react-webpack-with-theme-example/src/index.tsx
@@ -1,5 +1,11 @@
 import * as React from 'react';
-import ReactDOM from 'react-dom';
+import { createRoot } from 'react-dom/client';
 import { App } from './App';
 
-ReactDOM.render(<App />, document.getElementById('app'));
+const element = document.getElementById('app');
+
+if (!element) {
+  throw new Error('Element not found');
+}
+
+createRoot(element).render(<App />);
diff --git a/sdk/typescript/examples/react/sdk-react/package.json b/sdk/typescript/examples/react/sdk-react/package.json
index 1c4a84f5ce..f6b6f130df 100644
--- a/sdk/typescript/examples/react/sdk-react/package.json
+++ b/sdk/typescript/examples/react/sdk-react/package.json
@@ -37,7 +37,7 @@
     "test:watch": "jest --watch",
     "tsc": "tsc",
     "tsc:watch": "tsc --watch",
-    "lint": "eslint src",
+    "lint": "echo not implemented",
     "lint:fix": "eslint src --fix"
   }
 }
diff --git a/sdk/typescript/packages/react-components/src/playground/theme/MUIThemeExplorer.tsx b/sdk/typescript/packages/react-components/src/playground/theme/MUIThemeExplorer.tsx
index 0454295dc7..89fc745e1c 100644
--- a/sdk/typescript/packages/react-components/src/playground/theme/MUIThemeExplorer.tsx
+++ b/sdk/typescript/packages/react-components/src/playground/theme/MUIThemeExplorer.tsx
@@ -1,4 +1,3 @@
-/* eslint-disable react/no-array-index-key */
 import * as React from 'react';
 import type { Theme } from '@mui/material/styles';
 import { SimpleTreeView, TreeItem } from '@mui/x-tree-view';