diff --git a/python-networkx.spec b/python-networkx.spec
index c175774..b4e8225 100644
--- a/python-networkx.spec
+++ b/python-networkx.spec
@@ -34,9 +34,10 @@ Recommends:     python-PyYAML
 Recommends:     python-pydot
 Recommends:     python-pygraphviz
 Recommends:     python-pyparsing
-Suggests:       python-matplotlib >= 3.1
+Requires:       python-matplotlib >= 3.1
+Requires:       python-numpy
 Suggests:       python-pandas
-Suggests:       python-scipy
+Requires:       python-scipy
 BuildArch:      noarch
 # SECTION test requirements
 BuildRequires:  %{python_module PyYAML}