diff --git a/setup.py b/setup.py
index 985ac6bff521f23e695655dbb833f9d59e0c2bd6..068dec9f4d5274a00c2a2a83da11df55bfbe8be0 100755
--- a/setup.py
+++ b/setup.py
@@ -158,7 +158,7 @@ def setup_package():
         install_requires=["linkahead>=0.13.1",
                           "jsonref",
                           "jsonschema[format]>=4.4.0",
-                          "numpy>=1.24.0",
+                          "numpy>=1.24.0, < 2",
                           "openpyxl>=3.1.2,!=3.1.3",
                           "pandas>=1.2.0",
                           "xlrd>=2.0",