diff --git a/pyproject.toml b/pyproject.toml
index b6f47cfa..bf7af2a4 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -29,6 +29,7 @@ dependencies = [
     "pandas>=1.1.3;python_version<'3.10'",
     "pandas>=1.3.4;python_version>='3.10' and python_version<'3.11'",
     "pandas>=1.5.0;python_version>='3.11'",
+    "scikit-learn>=0.24,<2;python_version<'3.10'",
     "scikit-learn>=1.1.3,<2;python_version>='3.10'",
     "torch>=1.8.0;python_version<'3.10'",
     "torch>=1.11.0;python_version>='3.10' and python_version<'3.11'",