diff --git a/requirements.txt b/requirements.txt
index fded850..42535ea 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,6 +1,6 @@
 pandas==1.3.1
 requests==2.25.1
-lxml==4.6.3
+lxml==4.9.1
 numpy==1.21.1
 xlrd==2.0.1
 humanize==3.11.0