diff --git a/requirements.txt b/requirements.txt
index a85739ed615894896a53bef435746f1468b08146..2d128c9857f04455c469ae3a0991470ba2f7ed6a 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,2 +1,2 @@
 setuptools
-numpy
+numpy=1.17