diff --git a/setup.py b/setup.py
index 47ca0b4..13b6ee6 100644
--- a/setup.py
+++ b/setup.py
@@ -12,7 +12,7 @@
     long_description = '\n' + f.read()
 
 required = [
-    'psutil==5.1.3',
+    'psutil==5.6.6',
     'six==1.11.0',
     ]