diff --git a/requirements.txt b/requirements.txt
index fdb7887..3ef1657 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -11,7 +11,7 @@ lazy-object-proxy==1.4.3
 mccabe==0.6.1
 paho-mqtt==1.5.0
 protobuf==3.10.0
-psutil==5.6.5
+psutil==5.6.6
 pycodestyle==2.5.0
 pylint==2.4.4
 six==1.13.0