diff --git a/py-polars/polars/datatypes/constructor.py b/py-polars/polars/datatypes/constructor.py
index bcd77f9b54a0..c95923379a64 100644
--- a/py-polars/polars/datatypes/constructor.py
+++ b/py-polars/polars/datatypes/constructor.py
@@ -155,6 +155,7 @@ def numpy_type_to_constructor(
         int: PySeries.new_opt_i64,
         str: PySeries.new_str,
         bool: PySeries.new_opt_bool,
+        bytes: PySeries.new_binary,
         PyDecimal: PySeries.new_decimal,
     }