diff --git a/requirements.txt b/requirements.txt
old mode 100755
new mode 100644
index eedfbfd..230cb9c
--- a/requirements.txt
+++ b/requirements.txt
@@ -145,7 +145,7 @@ ply==3.11
 preshed==3.0.2
 prometheus-client==0.7.1
 prompt-toolkit==2.0.10
-psutil==5.6.3
+psutil==5.6.6
 ptyprocess==0.6.0
 py==1.8.0
 pycodestyle==2.5.0