diff --git a/pyproject.toml b/pyproject.toml
index 78b19b6..b505e79 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -18,8 +18,9 @@ setuptools = "^65.5.0"
 viztracer = "^0.15.4"
 vizplugins = "^0.1.2"
 Cython = "^0.29.32"
+defusedxml = "*"
 
 
 [build-system]
-requires = ["poetry-core"]
+requires = ["setuptools"]
 build-backend = "poetry.core.masonry.api"
diff --git a/requirement.txt b/requirement.txt
index 3033524..4b67b52 100644
--- a/requirement.txt
+++ b/requirement.txt
@@ -2,7 +2,7 @@ psutil
 pillow
 objprint
 # selenium
-
+defusedxml
 tomlkit
 pymunk
 rtoml