diff --git a/setup.py b/setup.py
index 865a397..0ea8d57 100644
--- a/setup.py
+++ b/setup.py
@@ -14,7 +14,7 @@
           'mock==2.0.0',
           'requests==2.20.0',
           'singer-python==5.8.0',
-          'psutil==5.3.1',
+          'psutil==5.6.6',
           'simplejson==3.11.1',
           'aiohttp==3.5.4',
           'cchardet==2.1.4',