diff --git a/docs/conf.py b/docs/conf.py
index 3d93c3f6..a8db9f71 100644
--- a/docs/conf.py
+++ b/docs/conf.py
@@ -66,6 +66,7 @@
                         'pandas',
                         'tqdm',
                         'scipy',
+                        'psutil',
                         'awscli']
 
 # There seems to be a conflict between unittest.mock (used by sphinx) and metaclasses