diff --git a/pyproject.toml b/pyproject.toml
index 353755c0..78b35700 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -28,7 +28,7 @@ classifiers = [
   "Programming Language :: Python :: 3.12",
 ]
 dynamic = ["version"]
-dependencies = ["pydantic >=1.9.0", "pydantic-compat >=0.1.0", "xsdata >=23.6"]
+dependencies = ["pydantic >=1.9.0", "pydantic-compat >=0.1.0", "xsdata >=23.6,<24.4"]
 
 [project.urls]
 Source = "https://github.com/tlambert03/ome-types"