diff --git a/02_lesson/package-lock.json b/02_lesson/package-lock.json
index dc8f192..fdf320b 100644
--- a/02_lesson/package-lock.json
+++ b/02_lesson/package-lock.json
@@ -10,8 +10,8 @@
       "dependencies": {
         "@reduxjs/toolkit": "^1.8.0",
         "date-fns": "^2.28.0",
-        "react": "^17.0.2",
-        "react-dom": "^17.0.2",
+        "react": "^18.3.1",
+        "react-dom": "^18.3.1",
         "react-redux": "^7.2.6",
         "react-scripts": "5.0.0"
       }
@@ -12855,12 +12855,11 @@
       }
     },
     "node_modules/react": {
-      "version": "17.0.2",
-      "resolved": "https://registry.npmjs.org/react/-/react-17.0.2.tgz",
-      "integrity": "sha512-gnhPt75i/dq/z3/6q/0asP78D0u592D5L1pd7M8P+dck6Fu/jJeL6iVVK23fptSUZj8Vjf++7wXA8UNclGQcbA==",
+      "version": "18.3.1",
+      "resolved": "https://registry.npmjs.org/react/-/react-18.3.1.tgz",
+      "integrity": "sha512-wS+hAgJShR0KhEvPJArfuPVN1+Hz1t0Y6n5jLrGQbkb4urgPE/0Rve+1kMB1v/oWgHgm4WIcV+i7F2pTVj+2iQ==",
       "dependencies": {
-        "loose-envify": "^1.1.0",
-        "object-assign": "^4.1.1"
+        "loose-envify": "^1.1.0"
       },
       "engines": {
         "node": ">=0.10.0"
@@ -13000,16 +12999,15 @@
       }
     },
     "node_modules/react-dom": {
-      "version": "17.0.2",
-      "resolved": "https://registry.npmjs.org/react-dom/-/react-dom-17.0.2.tgz",
-      "integrity": "sha512-s4h96KtLDUQlsENhMn1ar8t2bEa+q/YAtj8pPPdIjPDGBDIVNsrD9aXNWqspUe6AzKCIG0C1HZZLqLV7qpOBGA==",
+      "version": "18.3.1",
+      "resolved": "https://registry.npmjs.org/react-dom/-/react-dom-18.3.1.tgz",
+      "integrity": "sha512-5m4nQKp+rZRb09LNH59GM4BxTh9251/ylbKIbpe7TpGxfJ+9kv6BLkLBXIjjspbgbnIBNqlI23tRnTWT0snUIw==",
       "dependencies": {
         "loose-envify": "^1.1.0",
-        "object-assign": "^4.1.1",
-        "scheduler": "^0.20.2"
+        "scheduler": "^0.23.2"
       },
       "peerDependencies": {
-        "react": "17.0.2"
+        "react": "^18.3.1"
       }
     },
     "node_modules/react-error-overlay": {
@@ -13623,12 +13621,11 @@
       }
     },
     "node_modules/scheduler": {
-      "version": "0.20.2",
-      "resolved": "https://registry.npmjs.org/scheduler/-/scheduler-0.20.2.tgz",
-      "integrity": "sha512-2eWfGgAqqWFGqtdMmcL5zCMK1U8KlXv8SQFGglL3CEtd0aDVDWgeF/YoCmvln55m5zSk3J/20hTaSBeSObsQDQ==",
+      "version": "0.23.2",
+      "resolved": "https://registry.npmjs.org/scheduler/-/scheduler-0.23.2.tgz",
+      "integrity": "sha512-UOShsPwz7NrMUqhR6t0hWjFduvOzbtv7toDH1/hIrfRNIDBnnBWd0CwJTGvTpngVlmwGCdP9/Zl/tVrDqcuYzQ==",
       "dependencies": {
-        "loose-envify": "^1.1.0",
-        "object-assign": "^4.1.1"
+        "loose-envify": "^1.1.0"
       }
     },
     "node_modules/schema-utils": {
@@ -24968,12 +24965,11 @@
       }
     },
     "react": {
-      "version": "17.0.2",
-      "resolved": "https://registry.npmjs.org/react/-/react-17.0.2.tgz",
-      "integrity": "sha512-gnhPt75i/dq/z3/6q/0asP78D0u592D5L1pd7M8P+dck6Fu/jJeL6iVVK23fptSUZj8Vjf++7wXA8UNclGQcbA==",
+      "version": "18.3.1",
+      "resolved": "https://registry.npmjs.org/react/-/react-18.3.1.tgz",
+      "integrity": "sha512-wS+hAgJShR0KhEvPJArfuPVN1+Hz1t0Y6n5jLrGQbkb4urgPE/0Rve+1kMB1v/oWgHgm4WIcV+i7F2pTVj+2iQ==",
       "requires": {
-        "loose-envify": "^1.1.0",
-        "object-assign": "^4.1.1"
+        "loose-envify": "^1.1.0"
       }
     },
     "react-app-polyfill": {
@@ -25076,13 +25072,12 @@
       }
     },
     "react-dom": {
-      "version": "17.0.2",
-      "resolved": "https://registry.npmjs.org/react-dom/-/react-dom-17.0.2.tgz",
-      "integrity": "sha512-s4h96KtLDUQlsENhMn1ar8t2bEa+q/YAtj8pPPdIjPDGBDIVNsrD9aXNWqspUe6AzKCIG0C1HZZLqLV7qpOBGA==",
+      "version": "18.3.1",
+      "resolved": "https://registry.npmjs.org/react-dom/-/react-dom-18.3.1.tgz",
+      "integrity": "sha512-5m4nQKp+rZRb09LNH59GM4BxTh9251/ylbKIbpe7TpGxfJ+9kv6BLkLBXIjjspbgbnIBNqlI23tRnTWT0snUIw==",
       "requires": {
         "loose-envify": "^1.1.0",
-        "object-assign": "^4.1.1",
-        "scheduler": "^0.20.2"
+        "scheduler": "^0.23.2"
       }
     },
     "react-error-overlay": {
@@ -25510,12 +25505,11 @@
       }
     },
     "scheduler": {
-      "version": "0.20.2",
-      "resolved": "https://registry.npmjs.org/scheduler/-/scheduler-0.20.2.tgz",
-      "integrity": "sha512-2eWfGgAqqWFGqtdMmcL5zCMK1U8KlXv8SQFGglL3CEtd0aDVDWgeF/YoCmvln55m5zSk3J/20hTaSBeSObsQDQ==",
+      "version": "0.23.2",
+      "resolved": "https://registry.npmjs.org/scheduler/-/scheduler-0.23.2.tgz",
+      "integrity": "sha512-UOShsPwz7NrMUqhR6t0hWjFduvOzbtv7toDH1/hIrfRNIDBnnBWd0CwJTGvTpngVlmwGCdP9/Zl/tVrDqcuYzQ==",
       "requires": {
-        "loose-envify": "^1.1.0",
-        "object-assign": "^4.1.1"
+        "loose-envify": "^1.1.0"
       }
     },
     "schema-utils": {
diff --git a/02_lesson/package.json b/02_lesson/package.json
index c997dbb..e3d9245 100644
--- a/02_lesson/package.json
+++ b/02_lesson/package.json
@@ -5,8 +5,8 @@
   "dependencies": {
     "@reduxjs/toolkit": "^1.8.0",
     "date-fns": "^2.28.0",
-    "react": "^17.0.2",
-    "react-dom": "^17.0.2",
+    "react": "^18.3.1",
+    "react-dom": "^18.3.1",
     "react-redux": "^7.2.6",
     "react-scripts": "5.0.0"
   },
diff --git a/02_lesson/src/index.js b/02_lesson/src/index.js
index b2adf95..ccd9b91 100644
--- a/02_lesson/src/index.js
+++ b/02_lesson/src/index.js
@@ -1,15 +1,17 @@
-import React from 'react';
-import ReactDOM from 'react-dom';
-import './index.css';
-import App from './App';
-import { store } from './app/store';
-import { Provider } from 'react-redux';
+import React from "react";
+import { createRoot } from "react-dom/client";
+import "./index.css";
+import App from "./App";
+import { store } from "./app/store";
+import { Provider } from "react-redux";
 
-ReactDOM.render(
+const container = document.getElementById("root");
+const root = createRoot(container);
+
+root.render(
   <React.StrictMode>
     <Provider store={store}>
       <App />
     </Provider>
-  </React.StrictMode>,
-  document.getElementById('root')
+  </React.StrictMode>
 );