diff --git a/.kktrc.ts b/.kktrc.ts
index e009cbbf..f98a87b8 100644
--- a/.kktrc.ts
+++ b/.kktrc.ts
@@ -16,13 +16,39 @@ export default (conf: Configuration, env: 'production' | 'development', options:
       path.resolve(process.cwd(), 'src'),
     ]
   });
-  // conf.resolve!.alias = { '@uiw/react-monacoeditor': process.cwd() };
   // Get the project version.
   conf.plugins!.push(new webpack.DefinePlugin({
     VERSION: JSON.stringify(pkg.version),
   }));
   if (env === 'production') {
     conf.output = { ...conf.output, publicPath: './' };
+    conf.optimization = {
+      ...conf.optimization,
+      splitChunks: {
+        cacheGroups: {
+          reactvendor: {
+            test: /[\\/]node_modules[\\/](react|react-dom)[\\/]/,
+            name: 'react-vendor',
+            chunks: 'all',
+          },
+          refractor: {
+            test: /[\\/]node_modules[\\/](refractor)[\\/]/,
+            name: 'refractor-prismjs-vendor',
+            chunks: 'all',
+          },
+          runtime: {
+            test: /[\\/]node_modules[\\/](@babel)[\\/]/,
+            name: 'babel-vendor',
+            chunks: 'all',
+          },
+          parse5: {
+            test: /[\\/]node_modules[\\/](parse5)[\\/]/,
+            name: 'parse5-vendor',
+            chunks: 'all',
+          },
+        }
+      }
+    }
   }
   return conf;
 }
diff --git a/package.json b/package.json
index 6517b3b5..9dcab30c 100644
--- a/package.json
+++ b/package.json
@@ -34,20 +34,20 @@
     "@babel/runtime": ">=7.10.0"
   },
   "devDependencies": {
-    "@kkt/less-modules": "6.11.0",
-    "@kkt/raw-modules": "6.11.0",
-    "@kkt/scope-plugin-options": "6.11.0",
-    "@types/react": "17.0.20",
-    "@types/react-dom": "17.0.9",
+    "@kkt/less-modules": "7.0.5",
+    "@kkt/raw-modules": "7.0.5",
+    "@kkt/scope-plugin-options": "7.0.5",
+    "@types/react": "17.0.38",
+    "@types/react-dom": "17.0.11",
     "@uiw/react-github-corners": "1.5.3",
-    "@uiw/react-markdown-preview": "3.3.2",
+    "@uiw/react-markdown-preview": "3.4.7",
     "react": "17.0.2",
     "react-dom": "17.0.2",
-    "kkt": "6.11.0",
+    "kkt": "7.0.5",
     "tsbb": "3.1.9"
   },
   "dependencies": {
-    "@stackblitz/sdk": "1.5.2"
+    "@stackblitz/sdk": "1.5.3"
   },
   "eslintConfig": {
     "extends": [
diff --git a/src/react-app-env.d.ts b/src/react-app-env.d.ts
deleted file mode 100644
index 6431bc5f..00000000
--- a/src/react-app-env.d.ts
+++ /dev/null
@@ -1 +0,0 @@
-/// <reference types="react-scripts" />