diff --git a/app/src/main/java/one/mixin/android/crypto/db/SignalDatabase.kt b/app/src/main/java/one/mixin/android/crypto/db/SignalDatabase.kt
index c87c0cf2de..8d18bdff13 100644
--- a/app/src/main/java/one/mixin/android/crypto/db/SignalDatabase.kt
+++ b/app/src/main/java/one/mixin/android/crypto/db/SignalDatabase.kt
@@ -12,6 +12,7 @@ import one.mixin.android.crypto.vo.RatchetSenderKey
 import one.mixin.android.crypto.vo.SenderKey
 import one.mixin.android.crypto.vo.Session
 import one.mixin.android.crypto.vo.SignedPreKey
+import one.mixin.android.db.MixinDatabase
 
 @Database(
     entities = [
@@ -67,4 +68,9 @@ abstract class SignalDatabase : RoomDatabase() {
             object : RoomDatabase.Callback() {
             }
     }
+
+    override fun close() {
+        INSTANCE = null
+        super.close()
+    }
 }
diff --git a/app/src/main/java/one/mixin/android/db/DatabaseProvider.kt b/app/src/main/java/one/mixin/android/db/DatabaseProvider.kt
index 2ec23e97f6..5b4a659004 100644
--- a/app/src/main/java/one/mixin/android/db/DatabaseProvider.kt
+++ b/app/src/main/java/one/mixin/android/db/DatabaseProvider.kt
@@ -1,6 +1,7 @@
 package one.mixin.android.db
 
 import android.content.Context
+import one.mixin.android.crypto.db.SignalDatabase
 import one.mixin.android.fts.FtsDatabase
 import one.mixin.android.db.pending.PendingDatabase
 import one.mixin.android.db.pending.PendingDatabaseImp
@@ -13,6 +14,7 @@ class DatabaseProvider @Inject constructor(
     private var mixinDatabase: MixinDatabase? = null
     private var ftsDatabase: FtsDatabase? = null
     private var pendingDatabase: PendingDatabaseImp? = null
+    private var signalDatabase: SignalDatabase? = null
 
     @Synchronized
     fun getMixinDatabase(): MixinDatabase {
@@ -29,6 +31,11 @@ class DatabaseProvider @Inject constructor(
         return pendingDatabase ?: throw IllegalStateException("PendingDatabase is not initialized")
     }
 
+    @Synchronized
+    fun getSignalDatabase(): SignalDatabase {
+        return signalDatabase ?: throw IllegalStateException("SignalDatabase is not initialized")
+    }
+
     private var identityNumber: String? = null
     @Synchronized
     fun initAllDatabases() {
@@ -56,5 +63,8 @@ class DatabaseProvider @Inject constructor(
 
         pendingDatabase?.close()
         pendingDatabase = null
+
+        signalDatabase?.close()
+        signalDatabase = null
     }
 }
\ No newline at end of file
diff --git a/app/src/main/java/one/mixin/android/di/DatabaseModule.kt b/app/src/main/java/one/mixin/android/di/DatabaseModule.kt
index c252a12105..b2b47cbe58 100644
--- a/app/src/main/java/one/mixin/android/di/DatabaseModule.kt
+++ b/app/src/main/java/one/mixin/android/di/DatabaseModule.kt
@@ -15,13 +15,6 @@ import javax.inject.Singleton
 @InstallIn(SingletonComponent::class)
 @Module
 internal object DatabaseModule {
-    @Singleton
-    @Provides
-    fun provideSignalDb(app: Application) = SignalDatabase.getDatabase(app)
-
-    @Singleton
-    @Provides
-    fun provideRatchetSenderKeyDao(db: SignalDatabase) = db.ratchetSenderKeyDao()
 
     @Singleton
     @Provides
@@ -29,6 +22,14 @@ internal object DatabaseModule {
         return DatabaseProvider(app)
     }
 
+    @Provides
+    fun provideSignalDb(databaseProvider: DatabaseProvider): SignalDatabase {
+        return databaseProvider.getSignalDatabase()
+    }
+
+    @Provides
+    fun provideRatchetSenderKeyDao(db: SignalDatabase) = db.ratchetSenderKeyDao()
+
     @Provides
     fun provideAppDatabase(
         databaseProvider: DatabaseProvider