diff --git a/py-polars/polars/io/ipc/anonymous_scan.py b/py-polars/polars/io/ipc/anonymous_scan.py
index 3a363969a9ff..db8cfc802a4b 100644
--- a/py-polars/polars/io/ipc/anonymous_scan.py
+++ b/py-polars/polars/io/ipc/anonymous_scan.py
@@ -5,7 +5,6 @@
 
 import polars._reexport as pl
 import polars.io.ipc
-from polars.dependencies import pickle
 from polars.io._utils import _prepare_file_arg
 
 if TYPE_CHECKING:
@@ -17,13 +16,12 @@ def _scan_ipc_fsspec(
     storage_options: dict[str, object] | None = None,
 ) -> LazyFrame:
     func = partial(_scan_ipc_impl, source, storage_options=storage_options)
-    func_serialized = pickle.dumps(func)
 
     storage_options = storage_options or {}
     with _prepare_file_arg(source, **storage_options) as data:
         schema = polars.io.ipc.read_ipc_schema(data)
 
-    return pl.LazyFrame._scan_python_function(schema, func_serialized)
+    return pl.LazyFrame._scan_python_function(schema, func)
 
 
 def _scan_ipc_impl(  # noqa: D417
diff --git a/py-polars/polars/io/parquet/anonymous_scan.py b/py-polars/polars/io/parquet/anonymous_scan.py
index a47b805d6baa..1b698094d7bd 100644
--- a/py-polars/polars/io/parquet/anonymous_scan.py
+++ b/py-polars/polars/io/parquet/anonymous_scan.py
@@ -5,7 +5,6 @@
 
 import polars._reexport as pl
 import polars.io.parquet
-from polars.dependencies import pickle
 from polars.io._utils import _prepare_file_arg
 
 if TYPE_CHECKING:
@@ -17,13 +16,12 @@ def _scan_parquet_fsspec(
     storage_options: dict[str, object] | None = None,
 ) -> LazyFrame:
     func = partial(_scan_parquet_impl, source, storage_options=storage_options)
-    func_serialized = pickle.dumps(func)
 
     storage_options = storage_options or {}
     with _prepare_file_arg(source, **storage_options) as data:
         schema = polars.io.parquet.read_parquet_schema(data)
 
-    return pl.LazyFrame._scan_python_function(schema, func_serialized)
+    return pl.LazyFrame._scan_python_function(schema, func)
 
 
 def _scan_parquet_impl(  # noqa: D417