diff --git a/core/testing/build.gradle.kts b/core/testing/build.gradle.kts
index ee0979e..8596837 100644
--- a/core/testing/build.gradle.kts
+++ b/core/testing/build.gradle.kts
@@ -37,5 +37,5 @@ dependencies {
     implementation(libs.kotlinx.coroutines.test)
 
     implementation(projects.feature.repositories.domain)
-    implementation(projects.feature.signin.data.api)
+    implementation(projects.feature.signin.domain)
 }
\ No newline at end of file
diff --git a/feature/signin/data/api/.gitignore b/feature/signin/data/.gitignore
similarity index 100%
rename from feature/signin/data/api/.gitignore
rename to feature/signin/data/.gitignore
diff --git a/feature/signin/data/api/build.gradle.kts b/feature/signin/data/api/build.gradle.kts
deleted file mode 100644
index 50bf549..0000000
--- a/feature/signin/data/api/build.gradle.kts
+++ /dev/null
@@ -1,28 +0,0 @@
-plugins {
-    alias(libs.plugins.android.library)
-    alias(libs.plugins.kotlinAndroid)
-    alias(libs.plugins.ksp)
-
-    alias(libs.plugins.githubStarViewer.detekt)
-}
-
-android {
-    namespace = "com.github.mikan.githubstarviewer.feature.signin.data.api"
-    compileSdk = 34
-
-    defaultConfig {
-        minSdk = 24
-    }
-
-    compileOptions {
-        sourceCompatibility = JavaVersion.VERSION_1_8
-        targetCompatibility = JavaVersion.VERSION_1_8
-    }
-    kotlinOptions {
-        jvmTarget = "1.8"
-    }
-}
-
-dependencies {
-    implementation(libs.kotlinx.coroutines.android)
-}
diff --git a/feature/signin/data/api/src/main/java/com/github/mikan/githubstarviewer/feature/signin/data/api/AuthFailureException.kt b/feature/signin/data/api/src/main/java/com/github/mikan/githubstarviewer/feature/signin/data/api/AuthFailureException.kt
deleted file mode 100644
index d8049b7..0000000
--- a/feature/signin/data/api/src/main/java/com/github/mikan/githubstarviewer/feature/signin/data/api/AuthFailureException.kt
+++ /dev/null
@@ -1,3 +0,0 @@
-package com.github.mikan.githubstarviewer.feature.signin.data.api
-
-class AuthFailureException(throwable: Throwable) : Exception()
diff --git a/feature/signin/data/impl/build.gradle.kts b/feature/signin/data/build.gradle.kts
similarity index 100%
rename from feature/signin/data/impl/build.gradle.kts
rename to feature/signin/data/build.gradle.kts
diff --git a/feature/signin/data/impl/.gitignore b/feature/signin/data/impl/.gitignore
deleted file mode 100644
index 42afabf..0000000
--- a/feature/signin/data/impl/.gitignore
+++ /dev/null
@@ -1 +0,0 @@
-/build
\ No newline at end of file
diff --git a/feature/signin/data/impl/src/main/AndroidManifest.xml b/feature/signin/data/impl/src/main/AndroidManifest.xml
deleted file mode 100644
index a5918e6..0000000
--- a/feature/signin/data/impl/src/main/AndroidManifest.xml
+++ /dev/null
@@ -1,4 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<manifest xmlns:android="http://schemas.android.com/apk/res/android">
-
-</manifest>
\ No newline at end of file
diff --git a/feature/signin/data/api/src/main/AndroidManifest.xml b/feature/signin/data/src/main/AndroidManifest.xml
similarity index 100%
rename from feature/signin/data/api/src/main/AndroidManifest.xml
rename to feature/signin/data/src/main/AndroidManifest.xml
diff --git a/feature/signin/data/impl/src/main/java/com/github/mikan/githubstarviewer/feature/signin/data/di/FirebaseModule.kt b/feature/signin/data/src/main/java/com/github/mikan/githubstarviewer/feature/signin/data/di/FirebaseModule.kt
similarity index 100%
rename from feature/signin/data/impl/src/main/java/com/github/mikan/githubstarviewer/feature/signin/data/di/FirebaseModule.kt
rename to feature/signin/data/src/main/java/com/github/mikan/githubstarviewer/feature/signin/data/di/FirebaseModule.kt
diff --git a/feature/signin/data/impl/src/main/java/com/github/mikan/githubstarviewer/feature/signin/data/di/SignInDataModule.kt b/feature/signin/data/src/main/java/com/github/mikan/githubstarviewer/feature/signin/data/di/SignInDataModule.kt
similarity index 100%
rename from feature/signin/data/impl/src/main/java/com/github/mikan/githubstarviewer/feature/signin/data/di/SignInDataModule.kt
rename to feature/signin/data/src/main/java/com/github/mikan/githubstarviewer/feature/signin/data/di/SignInDataModule.kt
diff --git a/feature/signin/data/impl/src/main/java/com/github/mikan/githubstarviewer/feature/signin/data/impl/AuthRepositoryImpl.kt b/feature/signin/data/src/main/java/com/github/mikan/githubstarviewer/feature/signin/data/impl/AuthRepositoryImpl.kt
similarity index 100%
rename from feature/signin/data/impl/src/main/java/com/github/mikan/githubstarviewer/feature/signin/data/impl/AuthRepositoryImpl.kt
rename to feature/signin/data/src/main/java/com/github/mikan/githubstarviewer/feature/signin/data/impl/AuthRepositoryImpl.kt
diff --git a/feature/signin/domain/build.gradle.kts b/feature/signin/domain/build.gradle.kts
index 5f0c1aa..f757e13 100644
--- a/feature/signin/domain/build.gradle.kts
+++ b/feature/signin/domain/build.gradle.kts
@@ -24,8 +24,7 @@ android {
 }
 
 dependencies {
-    implementation(projects.feature.signin.data.api)
-    runtimeOnly(projects.feature.signin.data.impl)
+    runtimeOnly(projects.feature.signin.data)
 
     implementation(libs.kotlinx.coroutines.android)
 
diff --git a/settings.gradle.kts b/settings.gradle.kts
index 9bf9b79..5fc70db 100644
--- a/settings.gradle.kts
+++ b/settings.gradle.kts
@@ -33,5 +33,4 @@ include(":feature:repositories:ui")
 include(":feature:repositories:domain")
 include(":feature:signin:ui")
 include(":feature:signin:domain")
-include(":feature:signin:data:api")
-include(":feature:signin:data:impl")
+include(":feature:signin:data")