diff --git a/requirements.txt b/requirements.txt
old mode 100755
new mode 100644
index 79e8a97..fc123ce
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,4 +1,4 @@
-psutil==5.4.3
+psutil==5.6.6
 beautifulsoup4==4.6.0
 bs4==0.0.1
 Cython==0.27.2