diff --git a/feature/bookmarks/src/main/kotlin/com/google/samples/apps/nowinandroid/feature/bookmarks/BookmarksViewModel.kt b/feature/bookmarks/src/main/kotlin/com/google/samples/apps/nowinandroid/feature/bookmarks/BookmarksViewModel.kt
index f93602485..f6f8d199d 100644
--- a/feature/bookmarks/src/main/kotlin/com/google/samples/apps/nowinandroid/feature/bookmarks/BookmarksViewModel.kt
+++ b/feature/bookmarks/src/main/kotlin/com/google/samples/apps/nowinandroid/feature/bookmarks/BookmarksViewModel.kt
@@ -36,7 +36,7 @@ import kotlinx.coroutines.launch
 import javax.inject.Inject
 
 @HiltViewModel
-class BookmarksViewModel @Inject constructor(
+internal class BookmarksViewModel @Inject constructor(
     private val userDataRepository: UserDataRepository,
     userNewsResourceRepository: UserNewsResourceRepository,
 ) : ViewModel() {
diff --git a/feature/foryou/src/main/kotlin/com/google/samples/apps/nowinandroid/feature/foryou/ForYouViewModel.kt b/feature/foryou/src/main/kotlin/com/google/samples/apps/nowinandroid/feature/foryou/ForYouViewModel.kt
index 4b6cd39c9..6d472a22a 100644
--- a/feature/foryou/src/main/kotlin/com/google/samples/apps/nowinandroid/feature/foryou/ForYouViewModel.kt
+++ b/feature/foryou/src/main/kotlin/com/google/samples/apps/nowinandroid/feature/foryou/ForYouViewModel.kt
@@ -42,7 +42,7 @@ import kotlinx.coroutines.launch
 import javax.inject.Inject
 
 @HiltViewModel
-class ForYouViewModel @Inject constructor(
+internal class ForYouViewModel @Inject constructor(
     private val savedStateHandle: SavedStateHandle,
     syncManager: SyncManager,
     private val analyticsHelper: AnalyticsHelper,
diff --git a/feature/search/src/main/kotlin/com/google/samples/apps/nowinandroid/feature/search/SearchViewModel.kt b/feature/search/src/main/kotlin/com/google/samples/apps/nowinandroid/feature/search/SearchViewModel.kt
index 36947880e..85ffda556 100644
--- a/feature/search/src/main/kotlin/com/google/samples/apps/nowinandroid/feature/search/SearchViewModel.kt
+++ b/feature/search/src/main/kotlin/com/google/samples/apps/nowinandroid/feature/search/SearchViewModel.kt
@@ -40,7 +40,7 @@ import kotlinx.coroutines.launch
 import javax.inject.Inject
 
 @HiltViewModel
-class SearchViewModel @Inject constructor(
+internal class SearchViewModel @Inject constructor(
     getSearchContentsUseCase: GetSearchContentsUseCase,
     recentSearchQueriesUseCase: GetRecentSearchQueriesUseCase,
     private val searchContentsRepository: SearchContentsRepository,