diff --git a/python-fasteners.spec b/python-fasteners.spec
index 7a6a696..bb55ed6 100644
--- a/python-fasteners.spec
+++ b/python-fasteners.spec
@@ -30,7 +30,10 @@ BuildRequires:  python-six
 # tests
 BuildRequires:  python-testtools
 BuildRequires:  python-nose
+BuildRequires:  python-monotonic
+BuildRequires:  python-futures
 Requires:       python-six
+Requires:       python-monotonic
 
 %description -n python2-%{pypi_name}
 A python package that provides useful locks.