diff --git a/requirements.txt b/requirements.txt
index ca06007..6fc862b 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -127,7 +127,7 @@ pluggy==0.13.0
 ply==3.11
 prometheus-client==0.7.1
 prompt-toolkit==2.0.10
-psutil==5.6.3
+psutil==5.6.6
 py==1.8.0
 pycodestyle==2.5.0
 pycosat==0.6.3