diff --git a/README.md b/README.md
index f24d776..b68c560 100644
--- a/README.md
+++ b/README.md
@@ -10,7 +10,8 @@ The GRUB2 signing extension are some scripts which helps you to verify, sign and
 You need
 
 * GRUB2 ( sys-boot/grub:2 )
-* GNUpg ( app-crypt/gnupg )
+* GNUpg < 2.1 ( < app-crypt/gnupg-2.1 )  
+For GNUpg >= 2.1 see branch (for-gpg-2.1)[https://github.com/Bandie/grub2-signing-extension/tree/for-gpg-2.1]