diff --git a/requirements.txt b/requirements.txt
index 2451752..f9d1768 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -122,7 +122,7 @@ pluggy==0.12.0
 ply==3.11
 prometheus-client==0.6.0
 prompt-toolkit==2.0.9
-psutil==5.6.1
+psutil==5.6.6
 py==1.8.0
 pycodestyle==2.5.0
 pycosat==0.6.3