pyproject.toml

 [project]
 name = "thd-json"
-version = "0.1.13"
+version = "0.1.14"
 description = "THD JSON schema and validation tools."
 authors = [
     { name = "swittl", email = "simon.wittl@th-deg.de" }
@@ -11,10 +11,10 @@ dependencies = [
     "hypothesis-jsonschema>=0.23.1",
     "json-schema>=0.3",
     "jsonschema>=4.23.0",
-    "numpy>=2.1.3",
     "pillow>=11.0.0",
     "hatchling>=1.26.3",
     "jsonref>=1.1.0",
+    "numpy<=2.1.0",
 ]
 
 [project.scripts]
@@ -26,11 +26,6 @@ detector_validator = "thd_json.detector:detector_cli"
 source_validator = "thd_json.source:source_cli"
 projection_geometry_validator = "thd_json.projection_geometry:projection_geometry_cli"
 
-[project.optional-dependencies]
-load = [
-    "numpy>=2.1.3",
-    "pillow>=11.0.0",
-]
 
 [build-system]
 requires = ["hatchling"]