diff --git a/setup.py b/setup.py
index 6866e167..646d3408 100644
--- a/setup.py
+++ b/setup.py
@@ -103,7 +103,7 @@ def copy_shared_libraries():
         keywords="optimization",
         install_requires=[
             "sqlitedict>=1.6",
-            "numpy>=1.21,<2",
+            "numpy>=1.21",
             "scipy>=1.7",
             "mdolab-baseclasses>=1.3.1",
         ],