diff --git a/setup.py b/setup.py
index 103fc0a..dd9470b 100644
--- a/setup.py
+++ b/setup.py
@@ -85,7 +85,7 @@ def get_git_commit_datetime() -> str:
     'dateparser==0.7.1',
     'jinja2>=2.10',
     'jsonpath-rw==1.4.0',
-    'netdisco==2.6.0',
+    'netdisco>=2.6.0,<3',
     'regex==2019.04.14',
     'ruamel.yaml==0.15.96',
     'requests==2.22.0',