diff --git a/requirements.txt b/requirements.txt
old mode 100755
new mode 100644
index bd866e0..59b83d4
--- a/requirements.txt
+++ b/requirements.txt
@@ -68,7 +68,7 @@ pluggy==0.6.0
 progressbar2==3.38.0
 prompt-toolkit==1.0.15
 protobuf==3.5.2.post1
-psutil==5.4.5
+psutil==5.6.6
 ptyprocess==0.5.2
 py==1.5.3
 pycparser==2.18