diff --git a/setup.py b/setup.py
index b336a2790..16f96bd31 100644
--- a/setup.py
+++ b/setup.py
@@ -37,7 +37,7 @@
         "cloudpickle==2.2.1",
         "nest-asyncio",
         "networkx",
-        "numpy",
+        "numpy<2",
         "openpulse",
         "openqasm3",
         "sympy",