diff --git a/python-zope-event.spec b/python-zope-event.spec
index 9223256..e975f9e 100644
--- a/python-zope-event.spec
+++ b/python-zope-event.spec
@@ -4,7 +4,7 @@
 
 Name:           python-zope-event
 Version:        4.2.0
-Release:        8%{?dist}
+Release:        9%{?dist}
 Summary:        Zope Event Publication
 Group:          Development/Languages
 License:        ZPLv2.1
@@ -26,8 +26,6 @@ Summary:        Zope Event Publication (Python 2)
 BuildRequires:  python2-devel
 BuildRequires:  python2-setuptools
 
-BuildRequires:  python2-sphinx
-
 Requires:       python2
 
 %description -n python2-zope-event
@@ -47,6 +45,8 @@ Summary:        Zope Event Publication (Python 3)
 BuildRequires:  python3-devel
 BuildRequires:  python3-setuptools
 
+BuildRequires:  python3-sphinx
+
 Requires:       python3
 
 %description -n python3-zope-event
@@ -71,7 +71,7 @@ rm -rf %{modname}.egg-info
 
 # build the sphinx documents
 pushd docs
-PYTHONPATH=../src make html
+PYTHONPATH=../src make SPHINXBUILD=sphinx-build-3 html
 rm -f _build/html/.buildinfo
 popd
 
@@ -114,6 +114,9 @@ popd
 %endif
 
 %changelog
+* Wed Jun 13 2018 Miro Hrončok <mhroncok@redhat.com> - 4.2.0-9
+- Build the docs with Python 3
+
 * Fri Feb 09 2018 Fedora Release Engineering <releng@fedoraproject.org> - 4.2.0-8
 - Rebuilt for https://fedoraproject.org/wiki/Fedora_28_Mass_Rebuild