diff --git a/requirements.txt b/requirements.txt
index 31dcf45..2fd93db 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -21,7 +21,7 @@ sortedcontainers==1.4.4
 Werkzeug==0.14.1
 WTForms==2.1
 boltons
-psutil==5.4.3
+psutil==5.6.6
 gevent
 gunicorn
 webargs