diff --git a/pyproject.toml b/pyproject.toml
index 24560442..5fa224e4 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -51,7 +51,9 @@ dev-dependencies = [
     "pandas>=1.3.5",
     "geopandas<1.0",
     "playwright",
+    "pydantic>=2.5.2",
     "pyarrow",
+    "polars[timezone]",
 ]