diff --git a/Cargo.toml b/Cargo.toml
index 35e30b3..e391d0f 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "polars_xdt"
-version = "0.15.2"
+version = "0.15.3"
 edition = "2021"
 
 # See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
diff --git a/polars_xdt/functions.py b/polars_xdt/functions.py
index f6502c0..6efcf04 100644
--- a/polars_xdt/functions.py
+++ b/polars_xdt/functions.py
@@ -15,6 +15,7 @@
 
 if TYPE_CHECKING:
     from datetime import date
+
     from polars_xdt.typing import IntoExpr
 
 RollStrategy: TypeAlias = Literal["raise", "forward", "backward"]
diff --git a/polars_xdt/typing.py b/polars_xdt/typing.py
index 0683fd9..2581250 100644
--- a/polars_xdt/typing.py
+++ b/polars_xdt/typing.py
@@ -2,6 +2,7 @@
 
 if TYPE_CHECKING:
     import sys
+
     import polars as pl
 
     if sys.version_info >= (3, 10):