diff --git a/pyproject.toml b/pyproject.toml
index b761ce1f..8c811955 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -45,7 +45,7 @@ test = [
   "pytest-cov~=6.0",
   "syrupy~=4.0",
   "sphinxcontrib-plantuml~=0.0",
-  "lxml>=4.6.5,<5.0",
+  "lxml>=4.6.5,<6.0",
   "responses~=0.22.0",
   "pytest-xprocess~=1.0",
 ]