diff --git a/etc/requirements.txt b/etc/requirements.txt
index 0748cb8bd..17ffba227 100644
--- a/etc/requirements.txt
+++ b/etc/requirements.txt
@@ -3,5 +3,5 @@ numpy >= 1.7
 pandas >= 0.15.0
 toolz >= 0.7.3
 multipledispatch >= 0.4.7
-networkx >= 1.0
+networkx >= 1.0, < 2.0
 dask >= 0.11.1