diff --git a/data/src/main/java/jp/toastkid/yobidashi/libs/db/AppDatabase.kt b/data/src/main/java/jp/toastkid/yobidashi/libs/db/AppDatabase.kt
index ee7460763..085437b28 100644
--- a/data/src/main/java/jp/toastkid/yobidashi/libs/db/AppDatabase.kt
+++ b/data/src/main/java/jp/toastkid/yobidashi/libs/db/AppDatabase.kt
@@ -26,7 +26,7 @@ import jp.toastkid.yobidashi.settings.color.SavedColorRepository
         version = 1,
         exportSchema = false
 )
-abstract class AppDatabase : RoomDatabase() {
+internal abstract class AppDatabase : RoomDatabase() {
 
     abstract fun favoriteSearchRepository(): FavoriteSearchRepository