diff --git a/requirements.txt b/requirements.txt
index 56898fe1..c9924457 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -14,7 +14,7 @@ WebHelpers==1.3
 celery==3.1.17
 colander==1.0
 decorator==3.4.0
-lxml==3.4.1
+lxml==4.9.1
 json-table-schema<0.2
 https://github.com/pudo/messytables/tarball/allow-parser-args
 mock==1.0.1