diff --git a/application-templates/javascript/event/src/middleware/error.middleware.js b/application-templates/javascript/event/src/middleware/error.middleware.js
index 76149dc..ce83655 100644
--- a/application-templates/javascript/event/src/middleware/error.middleware.js
+++ b/application-templates/javascript/event/src/middleware/error.middleware.js
@@ -1,17 +1,18 @@
 import CustomError from '../errors/custom.error.js';
 
-export const errorMiddleware = (error, _req, res, _next) => {
+export const errorMiddleware = (error, _req, res) => {
   if (error instanceof CustomError) {
     if (typeof error.statusCode === 'number') {
       res.status(error.statusCode).json({
         message: error.message,
         errors: error.errors,
-        stack: error.stack
+        stack: process.env.NODE_ENV === 'development' ? error.stack : undefined,
       });
 
       return;
     }
   }
 
-  res.status(500).send('Internal server error: ' + error.stack);
+  res.status(500).send('Internal server error: ' + process.env.NODE_ENV === 'development' ? error.stack : undefined);
 };
+
diff --git a/application-templates/javascript/job/src/middleware/error.middleware.js b/application-templates/javascript/job/src/middleware/error.middleware.js
index 76149dc..ce83655 100644
--- a/application-templates/javascript/job/src/middleware/error.middleware.js
+++ b/application-templates/javascript/job/src/middleware/error.middleware.js
@@ -1,17 +1,18 @@
 import CustomError from '../errors/custom.error.js';
 
-export const errorMiddleware = (error, _req, res, _next) => {
+export const errorMiddleware = (error, _req, res) => {
   if (error instanceof CustomError) {
     if (typeof error.statusCode === 'number') {
       res.status(error.statusCode).json({
         message: error.message,
         errors: error.errors,
-        stack: error.stack
+        stack: process.env.NODE_ENV === 'development' ? error.stack : undefined,
       });
 
       return;
     }
   }
 
-  res.status(500).send('Internal server error: ' + error.stack);
+  res.status(500).send('Internal server error: ' + process.env.NODE_ENV === 'development' ? error.stack : undefined);
 };
+
diff --git a/application-templates/javascript/service/src/middleware/error.middleware.js b/application-templates/javascript/service/src/middleware/error.middleware.js
index 76149dc..ce83655 100644
--- a/application-templates/javascript/service/src/middleware/error.middleware.js
+++ b/application-templates/javascript/service/src/middleware/error.middleware.js
@@ -1,17 +1,18 @@
 import CustomError from '../errors/custom.error.js';
 
-export const errorMiddleware = (error, _req, res, _next) => {
+export const errorMiddleware = (error, _req, res) => {
   if (error instanceof CustomError) {
     if (typeof error.statusCode === 'number') {
       res.status(error.statusCode).json({
         message: error.message,
         errors: error.errors,
-        stack: error.stack
+        stack: process.env.NODE_ENV === 'development' ? error.stack : undefined,
       });
 
       return;
     }
   }
 
-  res.status(500).send('Internal server error: ' + error.stack);
+  res.status(500).send('Internal server error: ' + process.env.NODE_ENV === 'development' ? error.stack : undefined);
 };
+
diff --git a/application-templates/typescript/event/src/middleware/error.middleware.ts b/application-templates/typescript/event/src/middleware/error.middleware.ts
index 14ea798..75cda75 100644
--- a/application-templates/typescript/event/src/middleware/error.middleware.ts
+++ b/application-templates/typescript/event/src/middleware/error.middleware.ts
@@ -1,25 +1,20 @@
-import { ErrorRequestHandler, NextFunction, Request, Response } from 'express';
+import { ErrorRequestHandler, Request, Response } from 'express';
 import CustomError from '../errors/custom.error';
 
-
 export const errorMiddleware: ErrorRequestHandler = (
   error: Error,
-  req: Request,
+  _: Request,
   res: Response,
-  // eslint-disable-next-line @typescript-eslint/no-unused-vars
-  next: NextFunction
 ) => {
   if (error instanceof CustomError) {
-    
-      res.status(error.statusCode as number).json({
-        message: error.message,
-        errors: error.errors,
-        stack: error.stack,
-      });
+    res.status(error.statusCode as number).json({
+      message: error.message,
+      errors: error.errors,
+      stack: process.env.NODE_ENV === 'development' ? error.stack : undefined,
+    });
 
-      return;
-    
+    return;
   }
 
-  res.status(500).send('Internal server error: ' + error.stack);
+  res.status(500).send('Internal server error: ' + process.env.NODE_ENV === 'development' ? error.stack : undefined);
 };
diff --git a/application-templates/typescript/job/src/middleware/error.middleware.ts b/application-templates/typescript/job/src/middleware/error.middleware.ts
index 14ea798..75cda75 100644
--- a/application-templates/typescript/job/src/middleware/error.middleware.ts
+++ b/application-templates/typescript/job/src/middleware/error.middleware.ts
@@ -1,25 +1,20 @@
-import { ErrorRequestHandler, NextFunction, Request, Response } from 'express';
+import { ErrorRequestHandler, Request, Response } from 'express';
 import CustomError from '../errors/custom.error';
 
-
 export const errorMiddleware: ErrorRequestHandler = (
   error: Error,
-  req: Request,
+  _: Request,
   res: Response,
-  // eslint-disable-next-line @typescript-eslint/no-unused-vars
-  next: NextFunction
 ) => {
   if (error instanceof CustomError) {
-    
-      res.status(error.statusCode as number).json({
-        message: error.message,
-        errors: error.errors,
-        stack: error.stack,
-      });
+    res.status(error.statusCode as number).json({
+      message: error.message,
+      errors: error.errors,
+      stack: process.env.NODE_ENV === 'development' ? error.stack : undefined,
+    });
 
-      return;
-    
+    return;
   }
 
-  res.status(500).send('Internal server error: ' + error.stack);
+  res.status(500).send('Internal server error: ' + process.env.NODE_ENV === 'development' ? error.stack : undefined);
 };
diff --git a/application-templates/typescript/service/src/middleware/error.middleware.ts b/application-templates/typescript/service/src/middleware/error.middleware.ts
index 14ea798..75cda75 100644
--- a/application-templates/typescript/service/src/middleware/error.middleware.ts
+++ b/application-templates/typescript/service/src/middleware/error.middleware.ts
@@ -1,25 +1,20 @@
-import { ErrorRequestHandler, NextFunction, Request, Response } from 'express';
+import { ErrorRequestHandler, Request, Response } from 'express';
 import CustomError from '../errors/custom.error';
 
-
 export const errorMiddleware: ErrorRequestHandler = (
   error: Error,
-  req: Request,
+  _: Request,
   res: Response,
-  // eslint-disable-next-line @typescript-eslint/no-unused-vars
-  next: NextFunction
 ) => {
   if (error instanceof CustomError) {
-    
-      res.status(error.statusCode as number).json({
-        message: error.message,
-        errors: error.errors,
-        stack: error.stack,
-      });
+    res.status(error.statusCode as number).json({
+      message: error.message,
+      errors: error.errors,
+      stack: process.env.NODE_ENV === 'development' ? error.stack : undefined,
+    });
 
-      return;
-    
+    return;
   }
 
-  res.status(500).send('Internal server error: ' + error.stack);
+  res.status(500).send('Internal server error: ' + process.env.NODE_ENV === 'development' ? error.stack : undefined);
 };
diff --git a/package-lock.json b/package-lock.json
index 951fe00..7cb038f 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -13664,7 +13664,7 @@
     },
     "packages/create-connect-app": {
       "name": "@commercetools-connect/create-connect-app",
-      "version": "0.3.0",
+      "version": "0.4.0",
       "license": "MIT",
       "dependencies": {
         "cac": "^6.7.14",