diff --git a/requirements.txt b/requirements.txt
index 2a69e8b..0478ccb 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,7 +1,7 @@
 # version independent
 deprecation==2.1.0
 future==0.18.3
-lxml==4.9.3
+lxml==4.9.4
 simplejson==3.19.2
 
 # version dependent