diff --git a/pyproject.toml b/pyproject.toml
index cd1e8be..f010207 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -16,7 +16,7 @@ classifiers = [
 dynamic = ["version"]
 requires-python = ">=3.9"
 dependencies = [
-    'nested-pandas==0.2.1',
+    'nested-pandas>=0.2.1,<0.3',
     'numpy',
     'dask>=2024.3.0',
     'dask[distributed]>=2024.3.0',