diff --git a/bind.spec b/bind.spec
index 4c893c4..53ac09e 100644
--- a/bind.spec
+++ b/bind.spec
@@ -162,6 +162,7 @@ BuildRequires:  softhsm
 %if %{with SYSTEMTEST}
 # bin/tests/system dependencies
 BuildRequires:  perl(Net::DNS) perl(Net::DNS::Nameserver) perl(Time::HiRes) perl(Getopt::Long)
+BuildRequires:  python3-dns
 # manual configuration requires this tool
 BuildRequires:  iproute
 %endif