diff --git a/python-dnspython.changes b/python-dnspython.changes
index 999b60a..07104d2 100644
--- a/python-dnspython.changes
+++ b/python-dnspython.changes
@@ -1,3 +1,8 @@
+-------------------------------------------------------------------
+Sun Oct  9 09:40:46 UTC 2016 - sebix+novell.com@sebix.at
+
+- use and recommend python-ecdsa and python-pycrypto for dnssec support
+
 -------------------------------------------------------------------
 Sat Oct  8 13:16:31 UTC 2016 - sebix+novell.com@sebix.at
 
diff --git a/python-dnspython.spec b/python-dnspython.spec
index db59a7f..6d21445 100644
--- a/python-dnspython.spec
+++ b/python-dnspython.spec
@@ -32,10 +32,14 @@ Patch1:         readme.patch
 BuildRoot:      %{_tmppath}/%{name}-%{version}-build
 BuildRequires:  netcfg
 BuildRequires:  python-devel
+BuildRequires:  python-ecdsa
+BuildRequires:  python-idna
 BuildRequires:  python-pycrypto
 BuildRequires:  python-setuptools
 BuildRequires:  unzip
+Recommends:     python-ecdsa
 Recommends:     python-idna
+Recommends:     python-pycrypto
 BuildArch:      noarch
 
 %description