diff --git a/package-lock.json b/package-lock.json
index 1dfb737..c293ee2 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1,12 +1,12 @@
 {
   "name": "@novice1/app",
-  "version": "0.3.2",
+  "version": "0.3.3",
   "lockfileVersion": 2,
   "requires": true,
   "packages": {
     "": {
       "name": "@novice1/app",
-      "version": "0.3.2",
+      "version": "0.3.3",
       "license": "MIT",
       "dependencies": {
         "@novice1/logger": "^1.4.0",
diff --git a/package.json b/package.json
index d0d0edc..dbc38a0 100644
--- a/package.json
+++ b/package.json
@@ -1,7 +1,7 @@
 {
   "name": "@novice1/app",
   "private": false,
-  "version": "0.3.2",
+  "version": "0.3.3",
   "description": "Create Express applications.",
   "main": "lib/index.js",
   "homepage": "https://kisiwu.github.io/novice-app/latest/",
diff --git a/src/baseApp.ts b/src/baseApp.ts
index 3d53bed..dbd87d4 100644
--- a/src/baseApp.ts
+++ b/src/baseApp.ts
@@ -363,6 +363,12 @@ export abstract class BaseApp implements IApp {
     return this;
   }
 
+  // eslint-disable-next-line @typescript-eslint/no-explicit-any
+  engine(ext: string, fn: (path: string, options: object, callback: (e: any, rendered?: string | undefined) => void) => void): this {
+    this.__app.engine(ext, fn)
+    return this
+  }
+
   // eslint-disable-next-line @typescript-eslint/no-explicit-any
   get(setting: string): any {
     return this.__app.get(setting);