diff --git a/requirements.txt b/requirements.txt
index 171a2b7..e114211 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -24,7 +24,7 @@ pep8==1.7.1
 Pillow==5.4.1
 pluggy==0.6.0
 protobuf==3.7.1
-psutil==5.6.1
+psutil==5.6.6
 py==1.7.0
 pycodestyle==2.4.0
 pycparser==2.19