diff --git a/requirements.txt b/requirements.txt
index 9e8d5d8..248ab10 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -108,7 +108,7 @@ libarchive-c==2.8
 lief==0.9.0
 llvmlite==0.26.0
 locket==0.2.0
-lxml==4.2.5
+lxml==4.9.1
 MarkupSafe==1.1.0
 matplotlib==3.0.2
 mccabe==0.6.1