diff --git a/F-Droid/proguard-rules.pro b/F-Droid/proguard-rules.pro
index 55e1dea53..20e23d259 100644
--- a/F-Droid/proguard-rules.pro
+++ b/F-Droid/proguard-rules.pro
@@ -15,22 +15,10 @@
 # excludes classes which may be required, depending on the security algorithms
 # required by certain certificates.
 #   Reference: https://gitlab.com/fdroid/fdroidclient/issues/88
--keep class org.spongycastle.crypto.* {*;}
--keep class org.spongycastle.crypto.digests.* {*;}
--keep class org.spongycastle.crypto.encodings.* {*;}
--keep class org.spongycastle.crypto.engines.* {*;}
--keep class org.spongycastle.crypto.macs.* {*;}
--keep class org.spongycastle.crypto.modes.* {*;}
--keep class org.spongycastle.crypto.paddings.* {*;}
--keep class org.spongycastle.crypto.params.* {*;}
--keep class org.spongycastle.crypto.prng.* {*;}
--keep class org.spongycastle.crypto.signers.* {*;}
-
--keep class org.spongycastle.jcajce.provider.digest.** {*;}
--keep class org.spongycastle.jcajce.provider.keystore.** {*;}
--keep class org.spongycastle.jcajce.provider.symmetric.** {*;}
--keep class org.spongycastle.jcajce.spec.* {*;}
--keep class org.spongycastle.jce.** {*;}
+-keep class kellinwood.** {*;}
+-keep class javax.jmdns.** {*;}
+-keep class org.spongycastle.** {*;}
+-keep class eu.chainfire.** {*;}
 
 # This keeps class members used for SystemInstaller IPC.
 #   Reference: https://gitlab.com/fdroid/fdroidclient/issues/79
@@ -48,5 +36,3 @@
 -keep public class * extends android.support.v4.view.ActionProvider {
     public <init>(android.content.Context);
 }
-
--keep class kellinwood.security.zipsigner.** {*;}