diff --git a/requirements-tests.txt b/requirements-tests.txt
index 23ce45950..b35f16c05 100644
--- a/requirements-tests.txt
+++ b/requirements-tests.txt
@@ -10,3 +10,5 @@ pygments==2.1.3
 codecov==2.0.5
 flake8==2.6.2
 coverage==4.2
+numpy==1.10.4
+matplotlib==1.5.1