diff --git a/NessusParser-Excel/requirements.txt b/NessusParser-Excel/requirements.txt
index adcbb90..4714f77 100644
--- a/NessusParser-Excel/requirements.txt
+++ b/NessusParser-Excel/requirements.txt
@@ -1,3 +1,3 @@
-lxml==4.6.3
+lxml==4.9.1
 XlsxWriter==1.0.5
 argparse==1.4.0