diff --git a/requirements.txt b/requirements.txt
index 78b75e29..d6f554b8 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -40,7 +40,7 @@ tincan==1.0.0
 https://github.com/IMSGlobal/caliper-python/archive/1.2.0.4.zip
 nose==1.3.7
 unicodecsv==0.14.1
-lxml==4.8.0
+lxml==4.9.1
 Werkzeug==2.0.3
 # replaced with custom modified version to send Canvas specific params
 #lti==0.9.2