diff --git a/githubAppUpdate/src/main/java/info/hannes/github/AppUpdateHelper.kt b/githubAppUpdate/src/main/java/info/hannes/github/AppUpdateHelper.kt
index 648e5fb..9ebe15b 100644
--- a/githubAppUpdate/src/main/java/info/hannes/github/AppUpdateHelper.kt
+++ b/githubAppUpdate/src/main/java/info/hannes/github/AppUpdateHelper.kt
@@ -14,7 +14,6 @@ import android.widget.Toast
 import androidx.appcompat.app.AppCompatActivity
 import androidx.lifecycle.coroutineScope
 import androidx.preference.PreferenceManager
-import androidx.work.*
 import info.hannes.github.model.Asset
 import info.hannes.github.model.GithubVersion
 import kotlinx.coroutines.Dispatchers
@@ -35,7 +34,7 @@ object AppUpdateHelper {
         ""
     }
 
-    fun Context.getPackageInfo(): PackageInfo {
+    private fun Context.getPackageInfo(): PackageInfo {
         return if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.TIRAMISU) {
             packageManager.getPackageInfo(packageName, PackageManager.PackageInfoFlags.of(0))
         } else {
diff --git a/githubAppUpdate/src/main/java/info/hannes/github/DownloadWorker.kt b/githubAppUpdate/src/main/java/info/hannes/github/DownloadWorker.kt
index 05a4ec0..a780c52 100644
--- a/githubAppUpdate/src/main/java/info/hannes/github/DownloadWorker.kt
+++ b/githubAppUpdate/src/main/java/info/hannes/github/DownloadWorker.kt
@@ -31,7 +31,7 @@ class DownloadWorker(private val appContext: Context, workerParams: WorkerParame
     }
 
     companion object {
-        fun run(context: Context, currentVersionName: String, repoUrl: String, repeatTime : Long, timeUnit: TimeUnit, token: String? = null): ListenableFuture<MutableList<WorkInfo>> {
+        fun run(context: Context, currentVersionName: String, repoUrl: String, repeatTime : Long, timeUnit: TimeUnit, token: String? = null): ListenableFuture<List<WorkInfo>> {
             val data = workDataOf(
                 Pair(CURRENT_VERSION, currentVersionName),
                 Pair(REPO_URL, repoUrl),