diff --git a/package.json b/package.json
index 999ff3a2d..61f54e610 100644
--- a/package.json
+++ b/package.json
@@ -17,7 +17,7 @@
   "homepage": "https://github.com/ckeditor/ckeditor5-mermaid",
   "bugs": "https://github.com/ckeditor/ckeditor5-mermaid/issues",
   "engines": {
-    "node": ">=12.0.0",
+    "node": ">=14.0.0",
     "npm": ">=5.7.1"
   },
   "files": [
@@ -28,28 +28,28 @@
     "ckeditor5-metadata.json"
   ],
   "dependencies": {
-    "ckeditor5": "^32.0.0",
-    "mermaid": "^8.14.0",
+    "ckeditor5": "^34.2.0",
+    "mermaid": "^9.1.3",
     "lodash-es": "^4.17.15"
   },
   "devDependencies": {
-    "@ckeditor/ckeditor5-basic-styles": "^32.0.0",
-    "@ckeditor/ckeditor5-clipboard": "^32.0.0",
-    "@ckeditor/ckeditor5-code-block": "^32.0.0",
-    "@ckeditor/ckeditor5-editor-classic": "^32.0.0",
-    "@ckeditor/ckeditor5-engine": "^32.0.0",
-    "@ckeditor/ckeditor5-enter": "^32.0.0",
-    "@ckeditor/ckeditor5-essentials": "^32.0.0",
-    "@ckeditor/ckeditor5-heading": "^32.0.0",
-    "@ckeditor/ckeditor5-inspector": "^3.0.0",
-    "@ckeditor/ckeditor5-link": "^32.0.0",
-    "@ckeditor/ckeditor5-markdown-gfm": "^32.0.0",
-    "@ckeditor/ckeditor5-paragraph": "^32.0.0",
-    "@ckeditor/ckeditor5-typing": "^32.0.0",
-    "@ckeditor/ckeditor5-undo": "^32.0.0",
-    "@ckeditor/ckeditor5-widget": "^32.0.0",
+    "@ckeditor/ckeditor5-basic-styles": "^34.2.0",
+    "@ckeditor/ckeditor5-clipboard": "^34.2.0",
+    "@ckeditor/ckeditor5-code-block": "^34.2.0",
+    "@ckeditor/ckeditor5-editor-classic": "^34.2.0",
+    "@ckeditor/ckeditor5-engine": "^34.2.0",
+    "@ckeditor/ckeditor5-enter": "^34.2.0",
+    "@ckeditor/ckeditor5-essentials": "^34.2.0",
+    "@ckeditor/ckeditor5-heading": "^34.2.0",
+    "@ckeditor/ckeditor5-inspector": "^4.0.0",
+    "@ckeditor/ckeditor5-link": "^34.2.0",
+    "@ckeditor/ckeditor5-markdown-gfm": "^34.2.0",
+    "@ckeditor/ckeditor5-paragraph": "^34.2.0",
+    "@ckeditor/ckeditor5-typing": "^34.2.0",
+    "@ckeditor/ckeditor5-undo": "^34.2.0",
+    "@ckeditor/ckeditor5-widget": "^34.2.0",
     "@ckeditor/ckeditor5-package-tools": "^1.0.0-beta.4",
-    "@ckeditor/ckeditor5-theme-lark": ">=32.0.0",
+    "@ckeditor/ckeditor5-theme-lark": "^34.2.0",
     "eslint": "^7.32.0",
     "eslint-config-ckeditor5": ">=3.1.1",
     "http-server": "^14.1.0",
@@ -85,4 +85,4 @@
       "pre-commit": "lint-staged"
     }
   }
-}
\ No newline at end of file
+}