diff --git a/package.json b/package.json
index b304273..5739c7e 100644
--- a/package.json
+++ b/package.json
@@ -13,6 +13,7 @@
     "@testing-library/react": "^11.1.0",
     "@testing-library/user-event": "^12.1.10",
     "@types/jest": "^26.0.15",
+    "@types/js-yaml": "^4.0.5",
     "@types/node": "^12.0.0",
     "@types/react-dom": "^17.0.0",
     "axios": "^0.21.1",
@@ -28,8 +29,8 @@
     "react-hot-toast": "^2.0.0",
     "react-markdown": "^7.0.1",
     "react-redux": "^7.2.4",
-    "react-router-dom": "6.2.1",
     "react-router": "6.2.1",
+    "react-router-dom": "6.2.1",
     "react-scripts": "4.0.3",
     "react-simple-code-editor": "^0.11.0",
     "react-table": "^7.7.0",
diff --git a/src/modules/apps/components/AdvancedTab/AdvancedTab.tsx b/src/modules/apps/components/AdvancedTab/AdvancedTab.tsx
index 384392e..7700170 100644
--- a/src/modules/apps/components/AdvancedTab/AdvancedTab.tsx
+++ b/src/modules/apps/components/AdvancedTab/AdvancedTab.tsx
@@ -3,11 +3,12 @@ import _ from 'lodash';
 import Editor from 'react-simple-code-editor';
 // import { Menu, Transition } from '@headlessui/react';
 // import { ChevronDownIcon } from '@heroicons/react/solid';
+import yaml from 'js-yaml';
 import { highlight, languages } from 'prismjs';
 import 'prismjs/components/prism-clike';
 import 'prismjs/components/prism-yaml';
 import 'prismjs/themes/prism.css';
-import { showToast } from 'src/common/util/show-toast';
+import { showToast, ToastType } from 'src/common/util/show-toast';
 import { useApps } from 'src/services/apps';
 import { initialEditorYaml } from '../../consts';
 
@@ -21,8 +22,13 @@ export const AdvancedTab = () => {
   };
 
   const vertifyCode = () => {
-    // call yaml verification (only format)
-    // const result = validateSchema(code, {});
+    try {
+      yaml.load(code);
+      showToast('Configuration is valid!', ToastType.Success);
+    } catch (e: any) {
+      console.log('e', e);
+      showToast(`Configuration is not valid: ${e.message}`, ToastType.Error, Infinity);
+    }
   };
 
   const saveChanges = () => {