diff --git a/requirements.txt b/requirements.txt
index a3bdd44f..45b1fa7e 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -11,3 +11,4 @@ ply==3.11
 Jinja2==3.0.3
 PyYAML==6.0
 pyfdt==0.3
+lxml==5.2.1