diff --git a/requirements.txt b/requirements.txt
index 3dca232..63dcba9 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -13,7 +13,7 @@ html2text==2018.1.9
 Jinja2==2.10.1
 libsass==0.17.0
 lxml==3.7.1 ; sys_platform != 'win32' and python_version < '3.7'
-lxml==4.3.2 ; sys_platform != 'win32' and python_version >= '3.7'
+lxml==4.9.1 ; sys_platform != 'win32' and python_version >= '3.7'
 lxml ; sys_platform == 'win32'
 Mako==1.0.7
 MarkupSafe==1.1.0