diff --git a/setup.py b/setup.py
index e5ea0f1..afec37e 100644
--- a/setup.py
+++ b/setup.py
@@ -15,7 +15,7 @@
     'Click>=6.0',
     'smbus2==0.2.0',
     'axp209==0.0.2',
-    'psutil==5.4.5'
+    'psutil==5.6.6'
 #    'Pillow==6.2.1'
 # install the following two AFTER installing RPi.GPIO_NP_CB
 #  to prevent install of RPi.GPIO==0.7.0