diff --git a/proguard-spongycastle.pro b/proguard-spongycastle.pro
index 6adb50529..26c684267 100644
--- a/proguard-spongycastle.pro
+++ b/proguard-spongycastle.pro
@@ -1,6 +1,7 @@
 -keep class org.spongycastle.crypto.* {*;}
 -keep class org.spongycastle.crypto.agreement.** {*;}
 -keep class org.spongycastle.crypto.digests.* {*;}
+-keep class org.spongycastle.crypto.ec.* {*;}
 -keep class org.spongycastle.crypto.encodings.* {*;}
 -keep class org.spongycastle.crypto.engines.* {*;}
 -keep class org.spongycastle.crypto.macs.* {*;}
@@ -10,6 +11,11 @@
 -keep class org.spongycastle.crypto.prng.* {*;}
 -keep class org.spongycastle.crypto.signers.* {*;}
 
+-keep class org.spongycastle.jcajce.provider.asymmetric.* {*;}
+-keep class org.spongycastle.jcajce.provider.asymmetric.util.* {*;}
+-keep class org.spongycastle.jcajce.provider.asymmetric.dh.* {*;}
+-keep class org.spongycastle.jcajce.provider.asymmetric.ec.* {*;}
+
 -keep class org.spongycastle.jcajce.provider.digest.** {*;}
 -keep class org.spongycastle.jcajce.provider.keystore.** {*;}
 -keep class org.spongycastle.jcajce.provider.symmetric.** {*;}