diff --git a/cli/src/scenarios/IEM.ts b/cli/src/scenarios/IEM.ts
index 0b489c264..6a0401f41 100644
--- a/cli/src/scenarios/IEM.ts
+++ b/cli/src/scenarios/IEM.ts
@@ -11,7 +11,7 @@ const calculateEnergyConsumption = (faker: Faker, maxPower: number) => {
 const dataCache: Record<string, any> = {}
 let factoryList: { id: string; name: string }[] = []
 
-const generator = function (faker: Faker, options: SimulatePubOptions) {
+const generator = (faker: Faker, options: SimulatePubOptions) => {
   // Some fields will not change every time data is generated, so store them according to id
   const { clientId, count } = options
   // Initialize the factory list
diff --git a/cli/src/scenarios/smart_home.ts b/cli/src/scenarios/smart_home.ts
index 504d727ec..97f18940e 100644
--- a/cli/src/scenarios/smart_home.ts
+++ b/cli/src/scenarios/smart_home.ts
@@ -69,7 +69,7 @@ const generateRoomData = (faker: Faker, roomType: string): RoomData | KitchenDat
   return baseData
 }
 
-const generator = function (faker: Faker, options: SimulatePubOptions) {
+const generator = (faker: Faker, options: SimulatePubOptions) => {
   const { clientId } = options
   if (!dataCache[clientId]) {
     dataCache[clientId] = {
diff --git a/cli/src/scenarios/tesla.ts b/cli/src/scenarios/tesla.ts
index cf66554ba..e34b5acee 100644
--- a/cli/src/scenarios/tesla.ts
+++ b/cli/src/scenarios/tesla.ts
@@ -2,7 +2,7 @@ import { Faker } from '@faker-js/faker'
 
 const dataCache: Record<string, any> = {}
 
-const generator = function (faker: Faker, options: SimulatePubOptions) {
+const generator = (faker: Faker, options: SimulatePubOptions) => {
   // Some fields will not change every time data is generated, so store them according to id
   const { clientId } = options
   if (!dataCache[clientId]) {
diff --git a/cli/src/scenarios/weather.ts b/cli/src/scenarios/weather.ts
index 088b84765..66ec35958 100644
--- a/cli/src/scenarios/weather.ts
+++ b/cli/src/scenarios/weather.ts
@@ -19,7 +19,7 @@ function getTimeOfDay() {
   return 'Evening'
 }
 
-const generator = function (faker: Faker, options: SimulatePubOptions) {
+const generator = (faker: Faker, options: SimulatePubOptions) => {
   const { clientId } = options
   if (!dataCache[clientId]) {
     dataCache[clientId] = {
diff --git a/scripts-example/IoT-data-scenarios/IEM.js b/scripts-example/IoT-data-scenarios/IEM.js
index 80695a0d2..a2f52d8e5 100644
--- a/scripts-example/IoT-data-scenarios/IEM.js
+++ b/scripts-example/IoT-data-scenarios/IEM.js
@@ -25,7 +25,7 @@ const calculateEnergyConsumption = (faker, maxPower) => {
 const dataCache = {}
 let factoryList = []
 
-const generator = function (faker, options) {
+const generator = (faker, options) => {
   // Some fields will not change every time data is generated, so store them according to id
   const { clientId, count } = options
   // Initialize the factory list
diff --git a/scripts-example/IoT-data-scenarios/smart_home.js b/scripts-example/IoT-data-scenarios/smart_home.js
index 0674a9070..0df965eba 100644
--- a/scripts-example/IoT-data-scenarios/smart_home.js
+++ b/scripts-example/IoT-data-scenarios/smart_home.js
@@ -61,7 +61,7 @@ const generateRoomData = (faker, roomType) => {
   return baseData
 }
 
-const generator = function (faker, options) {
+const generator = (faker, options) => {
   const { clientId } = options
   if (!dataCache[clientId]) {
     dataCache[clientId] = {
diff --git a/scripts-example/IoT-data-scenarios/tesla.js b/scripts-example/IoT-data-scenarios/tesla.js
index 3d938c343..b8febdbc5 100644
--- a/scripts-example/IoT-data-scenarios/tesla.js
+++ b/scripts-example/IoT-data-scenarios/tesla.js
@@ -20,7 +20,7 @@
 
 const dataCache = {}
 
-const generator = function (faker, options) {
+const generator = (faker, options) => {
   // Some fields will not change every time data is generated, so store them according to id
   const { clientId } = options
   if (!dataCache[clientId]) {
diff --git a/scripts-example/IoT-data-scenarios/weather.js b/scripts-example/IoT-data-scenarios/weather.js
index 1c93d2a11..3b6b7f663 100644
--- a/scripts-example/IoT-data-scenarios/weather.js
+++ b/scripts-example/IoT-data-scenarios/weather.js
@@ -51,7 +51,7 @@ function getTimeOfDay() {
   return 'Evening'
 }
 
-const generator = function (faker, options) {
+const generator = (faker, options) => {
   const { clientId } = options
   if (!dataCache[clientId]) {
     dataCache[clientId] = {
@@ -125,4 +125,4 @@ const dataFormat = 'JSON'
 const version = '0.0.1'
 const description = "Simulation to generate advanced weather station's data."
 
-module.export = { generator, name, author, dataFormat, version, description }
+module.exports = { generator, name, author, dataFormat, version, description }