diff --git a/requirements.txt b/requirements.txt
index 5498812..5a25bd6 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -34,7 +34,7 @@ javaproperties==0.8.1
 Jinja2==3.0.3
 jsonstreams==0.6.0
 license-expression==21.6.14
-lxml==4.8.0
+lxml==4.9.1
 MarkupSafe==2.0.1
 more-itertools==8.13.0
 normality==2.3.3