diff --git a/package.json b/package.json
index cc52d5d..59bee21 100644
--- a/package.json
+++ b/package.json
@@ -31,6 +31,7 @@
   "dependencies": {
     "@langchain/core": "^0.3.51",
     "@langchain/openai": "^0.5.10",
+    "@nestjs/axios": "^4.0.0",
     "@nestjs/common": "^11.0.1",
     "@nestjs/config": "^4.0.2",
     "@nestjs/core": "^11.0.1",
diff --git a/src/auth/auth.module.ts b/src/auth/auth.module.ts
index e4fe0c1..3fc98d4 100644
--- a/src/auth/auth.module.ts
+++ b/src/auth/auth.module.ts
@@ -1,3 +1,4 @@
+import { HttpModule } from '@nestjs/axios';
 import { Module } from '@nestjs/common';
 import { JwtModule } from '@nestjs/jwt';
 import { PassportModule } from '@nestjs/passport';
@@ -11,6 +12,7 @@ import { JwtStrategy } from './strategy/jwt.strategy';
 
 @Module({
   imports: [
+    HttpModule.register({}),
     PassportModule,
     UserModule,
     JwtModule.register({
diff --git a/src/auth/auth.service.ts b/src/auth/auth.service.ts
index 7a03e37..b6de08f 100644
--- a/src/auth/auth.service.ts
+++ b/src/auth/auth.service.ts
@@ -1,7 +1,8 @@
+import { HttpService } from '@nestjs/axios';
 import { Injectable } from '@nestjs/common';
 import { ConfigService } from '@nestjs/config';
 import { JwtService } from '@nestjs/jwt';
-import axios, { AxiosError } from 'axios';
+import { catchError, firstValueFrom } from 'rxjs';
 import { KakaoUserResponse, UserPayload } from '@gglk/auth/auth.interface';
 import { UserService } from '@gglk/user/user.service';
 import { TOKEN_TYPE } from './auth.constant';
@@ -13,69 +14,65 @@ export class AuthService {
     private readonly jwtService: JwtService,
     private readonly userService: UserService,
     private readonly configService: ConfigService,
+    private readonly httpService: HttpService,
   ) {}
 
-  async getKakaoUserAccessToken(code: string, redirectUri: string) {
-    try {
-      const data = new URLSearchParams();
-      data.append('grant_type', 'authorization_code');
-      data.append(
-        'client_id',
-        this.configService.get<string>('KAKAO_CLIENT_ID')!,
-      );
-      data.append('code', code);
-      data.append('redirect_uri', redirectUri);
+  private get KAKAO_GRANT_TYPE() {
+    return 'authorization_code';
+  }
 
-      const response = await axios.post(
-        'https://kauth.kakao.com/oauth/token',
-        data,
-        {
-          headers: {
-            'Content-Type': 'application/x-www-form-urlencoded;charset=utf-8',
+  async getKakaoUserAccessToken(code: string, redirect_uri: string) {
+    const data = new URLSearchParams({
+      grant_type: this.KAKAO_GRANT_TYPE,
+      client_id: this.configService.get<string>('KAKAO_CLIENT_ID')!,
+      code,
+      redirect_uri,
+    });
+
+    const response = await firstValueFrom(
+      this.httpService
+        .post<{ access_token: string; [k: string]: unknown }>(
+          'https://kauth.kakao.com/oauth/token',
+          data,
+          {
+            headers: {
+              'Content-Type': 'application/x-www-form-urlencoded;charset=utf-8',
+            },
           },
-        },
-      );
-      const { access_token }: { access_token: string; [k: string]: unknown } =
-        response.data;
-      return access_token;
-    } catch (e) {
-      if (e instanceof AxiosError) {
-        console.error(
-          'Error while making authentication to Kakao - Get bearer token',
-        );
-        throw new KakaoOauthException();
-      } else {
-        throw e;
-      }
-    }
+        )
+        .pipe(
+          catchError((error) => {
+            console.error(error);
+            throw new KakaoOauthException();
+          }),
+        ),
+    );
+
+    return response.data.access_token;
   }
 
   async getKakaoUserByAccessToken(accessToken: string) {
-    try {
-      const userRes = await axios.get<KakaoUserResponse>(
-        'https://kapi.kakao.com/v2/user/me',
-        {
+    const userRes = await firstValueFrom(
+      this.httpService
+        .get<KakaoUserResponse>('https://kapi.kakao.com/v2/user/me', {
           headers: {
             Authorization: `Bearer ${accessToken}`,
           },
-        },
-      );
+        })
+        .pipe(
+          catchError((error) => {
+            console.error(error);
+            throw new KakaoOauthException();
+          }),
+        ),
+    );
 
-      const kakaoUser = userRes.data;
-      return {
-        id: kakaoUser.id.toString(),
-        name: kakaoUser.properties?.nickname ?? '',
-      };
-    } catch (e) {
-      if (e instanceof AxiosError) {
-        console.error(
-          'Error while making authentication to Kakao - Get user information',
-        );
-        throw new KakaoOauthException();
-      } else {
-        throw e;
-      }
-    }
+    const { data: kakaoUser } = userRes;
+
+    return {
+      id: kakaoUser.id.toString(),
+      name: kakaoUser.properties?.nickname ?? '',
+    };
   }
 
   async generateGuestToken() {
diff --git a/yarn.lock b/yarn.lock
index 1f44af5..73e7ad5 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -1028,6 +1028,11 @@
     "@napi-rs/nice-win32-ia32-msvc" "1.0.1"
     "@napi-rs/nice-win32-x64-msvc" "1.0.1"
 
+"@nestjs/axios@^4.0.0":
+  version "4.0.0"
+  resolved "https://registry.yarnpkg.com/@nestjs/axios/-/axios-4.0.0.tgz#520ff7c6238e635658fe334ee62db9d1b9c5546f"
+  integrity sha512-1cB+Jyltu/uUPNQrpUimRHEQHrnQrpLzVj6dU3dgn6iDDDdahr10TgHFGTmw5VuJ9GzKZsCLDL78VSwJAs/9JQ==
+
 "@nestjs/cli@^11.0.0":
   version "11.0.7"
   resolved "https://registry.yarnpkg.com/@nestjs/cli/-/cli-11.0.7.tgz#204a1969c2609d7cf5e98a4d65819bd8585bead7"