diff --git a/app/proguard-rules.pro b/app/proguard-rules.pro
index 1b44081..6b32048 100644
--- a/app/proguard-rules.pro
+++ b/app/proguard-rules.pro
@@ -1,5 +1,5 @@
 -keep class es.chiteroman.playintegrityfix.EntryPoint { public <methods>; }
 -keep class es.chiteroman.playintegrityfix.EntryPointVending { public <methods>; }
 -keepclassmembers class es.chiteroman.playintegrityfix.CustomKeyStoreSpi
--keepclassmembers class es.chiteroman.playintegrityfix.CustomPackageInfoCreator { public <methods>; }
+-keepclassmembers class es.chiteroman.playintegrityfix.CustomPackageInfoCreator { public <init>(...); }
 -keepclassmembers class es.chiteroman.playintegrityfix.CustomProvider