diff --git a/src/django_components/component.py b/src/django_components/component.py
index 5be4903d..4debcc85 100644
--- a/src/django_components/component.py
+++ b/src/django_components/component.py
@@ -2,7 +2,7 @@ import inspect
 import os
 import sys
 from pathlib import Path
-from typing import Any, ClassVar, Dict, List, Mapping, MutableMapping, Optional, Sequence, Tuple, Type, Union
+from typing import Any, ClassVar, Dict, List, Mapping, MutableMapping, Optional, Tuple, Type, Union
 
 from django.core.exceptions import ImproperlyConfigured
 from django.forms.widgets import Media, MediaDefiningClass
@@ -324,7 +324,7 @@ class ComponentNode(Node):
         context_args: List[FilterExpression],
         context_kwargs: Mapping[str, FilterExpression],
         isolated_context: bool = False,
-        fill_nodes: Sequence[FillNode] = (),
+        fill_nodes: Optional[List[FillNode]] = None,
         component_id: Optional[str] = None,
     ) -> None:
         self.component_id = component_id or gen_id()
@@ -332,7 +332,7 @@ class ComponentNode(Node):
         self.context_args = context_args or []
         self.context_kwargs = context_kwargs or {}
         self.isolated_context = isolated_context
-        self.fill_nodes = fill_nodes
+        self.fill_nodes = fill_nodes or []
         self.nodelist = NodeList(fill_nodes)
 
     def __repr__(self) -> str:
diff --git a/src/django_components/slots.py b/src/django_components/slots.py
index bb83516d..a13bd219 100644
--- a/src/django_components/slots.py
+++ b/src/django_components/slots.py
@@ -1,6 +1,6 @@
 import difflib
 import json
-from typing import Dict, List, NamedTuple, Optional, Sequence, Set, Type, Union
+from typing import Dict, List, NamedTuple, Optional, Set, Type, Union
 
 from django.template import Context, Template
 from django.template.base import FilterExpression, Node, NodeList, Parser, TextNode
@@ -263,7 +263,7 @@ class IfSlotFilledNode(Node):
 def parse_slot_fill_nodes_from_component_nodelist(
     component_nodelist: NodeList,
     ComponentNodeCls: Type[Node],
-) -> Sequence[FillNode]:
+) -> List[FillNode]:
     """
     Given a component body (`django.template.NodeList`), find all slot fills,
     whether defined explicitly with `{% fill %}` or implicitly.
@@ -282,7 +282,7 @@ def parse_slot_fill_nodes_from_component_nodelist(
     Then this function returns the nodes (`django.template.Node`) for `fill "first_fill"`
     and `fill "second_fill"`.
     """
-    fill_nodes: Sequence[FillNode] = []
+    fill_nodes: List[FillNode] = []
     if nodelist_has_content(component_nodelist):
         for parse_fn in (
             _try_parse_as_default_fill,
@@ -305,7 +305,7 @@ def parse_slot_fill_nodes_from_component_nodelist(
 def _try_parse_as_named_fill_tag_set(
     nodelist: NodeList,
     ComponentNodeCls: Type[Node],
-) -> Sequence[FillNode]:
+) -> List[FillNode]:
     result = []
     seen_name_fexps: Set[FilterExpression] = set()
     for node in nodelist:
@@ -329,7 +329,7 @@ def _try_parse_as_named_fill_tag_set(
 def _try_parse_as_default_fill(
     nodelist: NodeList,
     ComponentNodeCls: Type[Node],
-) -> Sequence[FillNode]:
+) -> List[FillNode]:
     nodes_stack: List[Node] = list(nodelist)
     while nodes_stack:
         node = nodes_stack.pop()