diff --git a/app/src/main/java/com/topjohnwu/magisk/model/download/DownloadService.kt b/app/src/main/java/com/topjohnwu/magisk/model/download/DownloadService.kt
index f22ba0af7..082978af0 100644
--- a/app/src/main/java/com/topjohnwu/magisk/model/download/DownloadService.kt
+++ b/app/src/main/java/com/topjohnwu/magisk/model/download/DownloadService.kt
@@ -13,6 +13,7 @@ import com.topjohnwu.magisk.extensions.chooser
 import com.topjohnwu.magisk.extensions.exists
 import com.topjohnwu.magisk.extensions.provide
 import com.topjohnwu.magisk.intent
+import com.topjohnwu.magisk.isRunningAsStub
 import com.topjohnwu.magisk.model.entity.internal.Configuration.*
 import com.topjohnwu.magisk.model.entity.internal.Configuration.Flash.Secondary
 import com.topjohnwu.magisk.model.entity.internal.DownloadSubject
@@ -20,7 +21,6 @@ import com.topjohnwu.magisk.model.entity.internal.DownloadSubject.*
 import com.topjohnwu.magisk.ui.flash.FlashActivity
 import com.topjohnwu.magisk.utils.APKInstall
 import com.topjohnwu.magisk.utils.DynAPK
-import com.topjohnwu.magisk.isRunningAsStub
 import org.koin.core.get
 import java.io.File
 import kotlin.random.Random.Default.nextInt
@@ -67,7 +67,8 @@ open class DownloadService : RemoteFileService() {
         when (subject.configuration)  {
             is APK.Upgrade -> {
                 if (isRunningAsStub) {
-                    subject.file.renameTo(DynAPK.update(this))
+                    subject.file.copyTo(DynAPK.update(this), overwrite = true)
+                    subject.file.delete()
                     ProcessPhoenix.triggerRebirth(this)
                 } else {
                     APKInstall.install(this, subject.file)
@@ -161,4 +162,4 @@ open class DownloadService : RemoteFileService() {
 
     }
 
-}
\ No newline at end of file
+}