diff --git a/app/proguard-rules.pro b/app/proguard-rules.pro
index fb2de18..475f198 100644
--- a/app/proguard-rules.pro
+++ b/app/proguard-rules.pro
@@ -20,7 +20,6 @@
 # hide the original source file name.
 #-renamesourcefileattribute SourceFile
 
--dontwarn
 -ignorewarnings
 -optimizationpasses 10
 -dontusemixedcaseclassnames
@@ -35,13 +34,6 @@
 -renamesourcefileattribute P
 -keepattributes SourceFile,LineNumberTable
 
--keep public class * extends android.app.Activity
--keep public class * extends android.app.Application
--keep public class * extends android.app.Service
--keep public class * extends android.content.ContentProvider
--keep public class * extends android.app.backup.BackupAgentHelper
--keep public class * extends android.preference.Preference
-
 -assumenosideeffects class kotlin.jvm.internal.Intrinsics {
     public static *** throwUninitializedProperty(...);
     public static *** throwUninitializedPropertyAccessException(...);