diff --git a/pywbem.spec b/pywbem.spec
index 75d67a7..9532ced 100644
--- a/pywbem.spec
+++ b/pywbem.spec
@@ -2,7 +2,7 @@
 
 Name:           pywbem
 Version:        0.9.0
-Release:        2%{?dist}
+Release:        3%{?dist}
 Summary:        Python2 WBEM Client and Provider Interface
 Group:          Development/Libraries
 License:        LGPLv2
@@ -11,7 +11,7 @@ Source0:        https://github.com/pywbem/pywbem/archive/v%{version}.tar.gz
 BuildRequires:  python-pip PyYAML python-ply python2-rpm-macros
 BuildRequires:  python3-pip python3-PyYAML python3-ply python3-rpm-macros
 BuildArch:      noarch
-Requires:       m2crypto PyYAML
+Requires:       m2crypto PyYAML python-six
 
 %description
 A Python library for making CIM (Common Information Model) operations over HTTP
@@ -31,7 +31,7 @@ easiest way to write providers on the planet.
 Group:          Development/Libraries
 Summary:        Python3 WBEM Client and Provider Interface
 BuildArch:      noarch
-Requires:       python3-PyYAML
+Requires:       python3-PyYAML python3-six
 
 %description -n python3-pywbem
 A WBEM client allows issuing operations to a WBEM server, using the CIM
@@ -95,6 +95,9 @@ rm -rf %{buildroot}
 %{python_sitelib}/pywbem/twisted_client.py*
 
 %changelog
+* Wed Oct 19 2016 Gris Ge <fge@redhat.com> 0.9.0-3
+- Add missing runtime dependency python3-six and python-six
+
 * Tue Sep 27 2016 Gris Ge <fge@redhat.com> 0.9.0-2
 - Add missing runtime dependency python3-PyYAML and PyYAML.