diff --git a/requirements.txt b/requirements.txt
index e1ab6e084..e81b32e3f 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -5,7 +5,7 @@ networkx==2.2
 shapely
 lxml
 appdirs
-numpy
+numpy<1.16.0
 jinja2
 requests
 colormath