diff --git a/pyproject.toml b/pyproject.toml
index bd8709c7..f1592632 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -65,7 +65,7 @@ dependencies = [
   "protobuf>=5.29.1,<7.0",
   "grpcio>=1.71.2",
   "beautifulsoup4>=4.15.0",
-  "lxml>=4.9.0",
+  "lxml>=6.1.1",
   "pypdf2>=2.10.0",
   "python-docx>=1.2.0",
   "openpyxl>=3.1.5",