diff --git a/requirements.txt b/requirements.txt
index 8f85caeb1..5f74f55ee 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -45,5 +45,5 @@ stevedore>=1.20.0 # Apache-2.0
 taskflow>=2.7.0 # Apache-2.0
 WebOb>=1.7.1 # MIT
 WSME>=0.8 # MIT
-networkx>=1.10 # BSD
+networkx<2.0,>=1.10 # BSD