diff --git a/app/src/main/java/com/topjohnwu/magisk/App.kt b/app/src/main/java/com/topjohnwu/magisk/App.kt
index 712b85a8e..b4b3ef86d 100644
--- a/app/src/main/java/com/topjohnwu/magisk/App.kt
+++ b/app/src/main/java/com/topjohnwu/magisk/App.kt
@@ -29,9 +29,9 @@ open class App : Application(), Application.ActivityLifecycleCallbacks {
 
     lateinit var protectedContext: Context
 
-    @Deprecated("Use dependency injection")
+    @Deprecated("Use dependency injection", level = DeprecationLevel.ERROR)
     val prefs: SharedPreferences by inject()
-    @Deprecated("Use dependency injection")
+    @Deprecated("Use dependency injection", level = DeprecationLevel.ERROR)
     val DB: MagiskDB by inject()
 
     @Volatile
diff --git a/app/src/main/java/com/topjohnwu/magisk/data/database/MagiskDB.java b/app/src/main/java/com/topjohnwu/magisk/data/database/MagiskDB.java
index 5ea518388..0426a49f7 100644
--- a/app/src/main/java/com/topjohnwu/magisk/data/database/MagiskDB.java
+++ b/app/src/main/java/com/topjohnwu/magisk/data/database/MagiskDB.java
@@ -20,7 +20,10 @@ import java.util.Date;
 import java.util.List;
 import java.util.Map;
 
+import kotlin.DeprecationLevel;
+
 @Deprecated
+@kotlin.Deprecated(message = "", level = DeprecationLevel.ERROR)
 public class MagiskDB {
 
     private static final String POLICY_TABLE = "policies";