diff --git a/python3/requirements.txt b/python3/requirements.txt
index 362b6a3..e00252a 100644
--- a/python3/requirements.txt
+++ b/python3/requirements.txt
@@ -1 +1 @@
-lxml==4.4.0
\ No newline at end of file
+lxml==4.9.1
\ No newline at end of file