diff --git a/pyproject.toml b/pyproject.toml
index 1be9018f..007963aa 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -41,7 +41,6 @@ dependencies = [
     "svgpathtools >= 1.5.1, <2",
     "anytree >= 2.8.0, <3",
     "ezdxf >= 1.1.0, < 2",
-    "numpy-stl >= 3.0.0, <4",
     "ipython >= 8.0.0, <9",
     "py-lib3mf >= 2.3.1",
     "ocpsvg",