diff --git a/backend/src/langchain/langchain.module.ts b/backend/src/langchain/langchain.module.ts
index 2d42062a..6b1bece1 100644
--- a/backend/src/langchain/langchain.module.ts
+++ b/backend/src/langchain/langchain.module.ts
@@ -5,7 +5,7 @@ import { BaseChatModel } from "@langchain/core/language_models/chat_models";
 
 type ModelList = {
 	[key: string]: string[];
-}
+};
 
 const modelList: ModelList = {
 	ollama: [
@@ -18,22 +18,18 @@ const modelList: ModelList = {
 		"starling-lm",
 		"solar",
 	],
-	openai: [
-		"gpt-3.5-turbo",
-		"gpt-4o-mini"
-	]
-}
+	openai: ["gpt-3.5-turbo", "gpt-4o-mini"],
+};
 
 const chatModelFactory = {
 	provide: "ChatModel",
 	useFactory: () => {
-		
 		const modelType = process.env.YORKIE_INTELLIGENCE;
-		try{
+		try {
 			const [provider, model] = modelType.split(":", 2);
-			let chatModel: BaseChatModel | ChatOllama
+			let chatModel: BaseChatModel | ChatOllama;
 
-			if (modelList[provider] && modelList[provider].includes(model)){
+			if (modelList[provider] && modelList[provider].includes(model)) {
 				if (provider === "ollama") {
 					chatModel = new ChatOllama({
 						model: model,
@@ -52,7 +48,6 @@ const chatModelFactory = {
 		} catch {
 			throw new Error(`${modelType} is not found. please check your model name`);
 		}
-		
 	},
 };