diff --git a/setup.py b/setup.py
index 91b98718b..964b9adfb 100644
--- a/setup.py
+++ b/setup.py
@@ -29,7 +29,7 @@
         "ezdxf",
         "multimethod",
         "nlopt",
-        "nptyping>=2",
+        "nptyping==2.0.1",
         "typish",
         "casadi",
         "path",