diff --git a/python-Sphinx.changes b/python-Sphinx.changes
index b1c39b6..1b6ee0d 100644
--- a/python-Sphinx.changes
+++ b/python-Sphinx.changes
@@ -1,3 +1,8 @@
+-------------------------------------------------------------------
+Wed Jul 29 13:18:28 UTC 2015 - hpj@urpla.net
+
+- Be explicit about six version requirements 
+
 -------------------------------------------------------------------
 Mon Jul 27 09:03:41 UTC 2015 - seife+obs@b1-systems.com
 
diff --git a/python-Sphinx.spec b/python-Sphinx.spec
index a480a6a..dd6f8ee 100644
--- a/python-Sphinx.spec
+++ b/python-Sphinx.spec
@@ -33,7 +33,7 @@ BuildRequires:  python-Jinja2 >= 2.3
 BuildRequires:  python-alabaster
 BuildRequires:  python-docutils >= 0.7
 BuildRequires:  python-mock
-BuildRequires:  python-six
+BuildRequires:  python-six >= 1.4
 BuildRequires:  python-snowballstemmer
 BuildRequires:  python-sphinx_rtd_theme
 # Testsuite requirements:
@@ -46,7 +46,7 @@ Requires:       python-Jinja2 >= 2.3
 Requires:       python-Pygments >= 2.0
 Requires:       python-alabaster
 Requires:       python-docutils >= 0.11
-Requires:       python-six
+Requires:       python-six >= 1.4
 Requires:       python-snowballstemmer
 Requires:       python-sphinx_rtd_theme
 %if 0%{?suse_version}