diff --git a/images/hub/requirements.txt b/images/hub/requirements.txt
index 9616184e397e42f3d187b06d1d1061293a999f4e..639616372b2baf8e58abfc7b2bf3b5b10ae8b610 100644
--- a/images/hub/requirements.txt
+++ b/images/hub/requirements.txt
@@ -16,3 +16,5 @@ mwoauth==0.3.2
 globus_sdk[jwt]==1.5.0
 cryptography==2.3.*
 jupyterhub-hmacauthenticator
+# Very useful for profiling running hubs
+py-spy