diff --git a/data/src/main/java/com/terning/data/datasourceimpl/AuthDataSourceImpl.kt b/data/src/main/java/com/terning/data/datasourceimpl/AuthDataSourceImpl.kt
index 654fa903..8a1080c9 100644
--- a/data/src/main/java/com/terning/data/datasourceimpl/AuthDataSourceImpl.kt
+++ b/data/src/main/java/com/terning/data/datasourceimpl/AuthDataSourceImpl.kt
@@ -21,5 +21,5 @@ class AuthDataSourceImpl @Inject constructor(
     override suspend fun postSignUp(
         authId: String,
         request: SignUpRequestDto
-    ): BaseResponse<SignUpResponseDto> = authService.postSignUp(authId, request)
+    ): BaseResponse<SignUpResponseDto> = authService.postSignUp("Bearer $authId", request)
 }
\ No newline at end of file
diff --git a/data/src/main/java/com/terning/data/service/AuthService.kt b/data/src/main/java/com/terning/data/service/AuthService.kt
index 17ac4bd4..84175774 100644
--- a/data/src/main/java/com/terning/data/service/AuthService.kt
+++ b/data/src/main/java/com/terning/data/service/AuthService.kt
@@ -19,7 +19,7 @@ interface AuthService {
 
     @POST("api/v1/auth/sign-up")
     suspend fun postSignUp(
-        @Header("authId") authId: String,
+        @Header("Authorization") authId: String,
         @Body body: SignUpRequestDto,
     ): BaseResponse<SignUpResponseDto>
 }
\ No newline at end of file