diff --git a/setup.py b/setup.py
index 2a0ae5f0..057a5e60 100644
--- a/setup.py
+++ b/setup.py
@@ -2,7 +2,7 @@
 from setuptools import setup
 
 install_deps = [
-    'numpy>=1.20.0',
+    'numpy>=1.20.0,<2.0.0',
     'scipy',
     'natsort',
     'tifffile',