diff --git a/py/Pipfile b/py/Pipfile
index 433219a..23d2206 100644
--- a/py/Pipfile
+++ b/py/Pipfile
@@ -9,5 +9,7 @@
 [packages]
 requests = "*"
 python-constraint = "*"
+Numberjack = "*"
+
 [requires]
 python_version = "3.7"