diff --git a/requirements.txt b/requirements.txt
old mode 100755
new mode 100644
index ae371b1..2f5a158
--- a/requirements.txt
+++ b/requirements.txt
@@ -4,7 +4,7 @@ chardet==3.0.4
 idna==2.10
 isort==4.3.21
 lazy-object-proxy==1.4.3
-lxml==4.6.2
+lxml==4.6.3
 mccabe==0.6.1
 multitasking==0.0.9
 numpy==1.19.1