diff --git a/noxfile.py b/noxfile.py
index 3b4863c..0bd7f6c 100644
--- a/noxfile.py
+++ b/noxfile.py
@@ -25,6 +25,7 @@
     "pytest",
     "pytest-cov",
     "pytest-localserver",
+    "pyu2f",
     "requests",
     "urllib3",
     "cryptography",