diff --git a/app/build.gradle.kts b/app/build.gradle.kts
index c0f8e01..c7e0393 100644
--- a/app/build.gradle.kts
+++ b/app/build.gradle.kts
@@ -15,8 +15,8 @@ android {
         applicationId = "com.rada"
         minSdk = 26
         targetSdk = 35
-        versionCode = 5
-        versionName = "0.1.3"
+        versionCode = 7
+        versionName = "0.1.5"
 
         testInstrumentationRunner = "androidx.test.runner.AndroidJUnitRunner"
     }
diff --git a/app/src/main/java/com/rada/data/local/dao/PlaylistDao.kt b/app/src/main/java/com/rada/data/local/dao/PlaylistDao.kt
index 5d3ed84..4fbc280 100644
--- a/app/src/main/java/com/rada/data/local/dao/PlaylistDao.kt
+++ b/app/src/main/java/com/rada/data/local/dao/PlaylistDao.kt
@@ -3,6 +3,7 @@ package com.rada.data.local.dao
 import androidx.room.Dao
 import androidx.room.Delete
 import androidx.room.Insert
+import androidx.room.OnConflictStrategy
 import androidx.room.Query
 import com.rada.data.local.entity.PlaylistEntity
 import com.rada.data.local.entity.PlaylistSongEntity
@@ -30,7 +31,9 @@ interface PlaylistDao {
     @Query("DELETE FROM playlists WHERE id = :playlistId")
     suspend fun deletePlaylistById(playlistId: Long)
 
-    @Insert
+    // IGNORE: (playlistId, songId) is the PK — re-adding a song that is
+    // already in the playlist must be a no-op, not a crash.
+    @Insert(onConflict = OnConflictStrategy.IGNORE)
     suspend fun addSongToPlaylist(playlistSong: PlaylistSongEntity)
 
     @Query("DELETE FROM playlist_songs WHERE playlistId = :playlistId AND songId = :songId")