diff --git a/pyproject.toml b/pyproject.toml
index 2237dd8..3bc8cb5 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -42,7 +42,7 @@ dependencies = [
   "mypy-extensions==1.0.0",
   "networkx>=2.8.8",
   "networkx-stubs==0.0.1",
-  "numpy>=1.24",
+  "numpy>=1.24,<2.0.0",
   "pandas>=2.0.2",
   "pandas-stubs==2.0.2.230605",
   "scikit-learn>=1.3.1",