diff --git a/python_requirements.txt b/python_requirements.txt
index a668bd1..1978f86 100644
--- a/python_requirements.txt
+++ b/python_requirements.txt
@@ -83,7 +83,7 @@ lazy-object-proxy==1.3.1
 libarchive-c==2.8
 llvmlite==0.26.0
 locket==0.2.0
-lxml==4.6.2
+lxml==4.6.5
 Markdown==3.1
 MarkupSafe==1.1.0
 matplotlib==3.0.2