diff --git a/requirements.txt b/requirements.txt
index a4ec779..1cafa1b 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,4 +1,4 @@
 Click==7.0
-lxml==4.4.2
+lxml==6.1.0
 xlrd==1.2.0
 xlwt==1.3.0