diff --git a/requirements.txt b/requirements.txt
index fcbe755..cec0059 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -11,7 +11,7 @@ fuzzywuzzy==0.2
 html5lib==1.0.1
 isodate==0.6.0
 lettuce==0.2.23
-lxml==4.6.2
+lxml==4.6.5
 nose==1.3.7
 pyparsing==2.2.0
 rdflib==4.2.2