diff --git a/python/chronos/src/setup.py b/python/chronos/src/setup.py
index 0effd210db0..f9e2135f9ae 100644
--- a/python/chronos/src/setup.py
+++ b/python/chronos/src/setup.py
@@ -71,7 +71,7 @@ def setup_package():
         license='Apache License, Version 2.0',
         url='https://github.com/intel-analytics/BigDL',
         packages=get_bigdl_packages(),
-        install_requires=['pandas>=1.0.5, <=1.3.5', 'scikit-learn>=0.22.0, <=1.0.2',
+        install_requires=['pandas>=1.0.5, <=1.3.5', 'scikit-learn',
                           'bigdl-nano==' + VERSION],
         extras_require={'pytorch': ['bigdl-nano[pytorch]==' + VERSION],
                         'tensorflow': ['bigdl-nano=='+VERSION] + TF_DEP,