diff --git a/whois.spec b/whois.spec
index 13fb5a5..d8615fc 100644
--- a/whois.spec
+++ b/whois.spec
@@ -1,5 +1,5 @@
 Name:          whois
-Version:       5.5.9
+Version:       5.5.10
 Release:       1mamba
 Summary:       Queries whois directory service for information pertaining to a domain name
 Group:         Applications/Networking
@@ -11,6 +11,7 @@ Source:        http://deb.debian.org/debian/pool/main/w/whois/whois_%{version}.t
 License:       GPL
 ## AUTOBUILDREQ-BEGIN
 BuildRequires: glibc-devel
+BuildRequires: libidn2-devel
 ## AUTOBUILDREQ-END
 
 %description
@@ -45,6 +46,9 @@ rm -f %{buildroot}%{_mandir}/man1/mkpasswd.1*
 #% doc README
 
 %changelog
+* Fri Jun 18 2021 Automatic Build System <autodist@mambasoft.it> 5.5.10-1mamba
+- automatic version update by autodist
+
 * Sun Mar 28 2021 Automatic Build System <autodist@mambasoft.it> 5.5.9-1mamba
 - automatic version update by autodist