diff --git a/app/src/main/java/es/chiteroman/playintegrityfix/CustomPackageInfoCreator.java b/app/src/main/java/es/chiteroman/playintegrityfix/CustomPackageInfoCreator.java
index a1dc149..8464a50 100644
--- a/app/src/main/java/es/chiteroman/playintegrityfix/CustomPackageInfoCreator.java
+++ b/app/src/main/java/es/chiteroman/playintegrityfix/CustomPackageInfoCreator.java
@@ -6,7 +6,7 @@ import android.os.Build;
 import android.os.Parcel;
 import android.os.Parcelable;
 
-public class CustomPackageInfoCreator implements Parcelable.Creator<PackageInfo> {
+public final class CustomPackageInfoCreator implements Parcelable.Creator<PackageInfo> {
     private final Parcelable.Creator<PackageInfo> originalCreator;
     private final Signature spoofedSignature;