diff --git a/django_components/component.py b/django_components/component.py
index 5aef8d59..aeb51c4d 100644
--- a/django_components/component.py
+++ b/django_components/component.py
@@ -1,5 +1,3 @@
-from __future__ import annotations
-
 import copy
 from typing import (
     TYPE_CHECKING,
@@ -71,7 +69,7 @@ class Component(metaclass=SimplifiedInterfaceMediaDefiningClass):
 
     def __init__(self, component_name):
         self._component_name: str = component_name
-        self._instance_fills: Optional[List[FillNode]] = None
+        self._instance_fills: Optional[List["FillNode"]] = None
         self._outer_context: Optional[dict] = None
 
     def get_context_data(self, *args, **kwargs):
@@ -100,7 +98,7 @@ class Component(metaclass=SimplifiedInterfaceMediaDefiningClass):
 
     def get_declared_slots(
         self, context: Context, template: Optional[Template] = None
-    ) -> List[SlotNode]:
+    ) -> List["SlotNode"]:
         if template is None:
             template = self.get_template(context)
         return list(
@@ -113,7 +111,7 @@ class Component(metaclass=SimplifiedInterfaceMediaDefiningClass):
         template = get_template(template_name).template
         return template
 
-    def set_instance_fills(self, fills: Dict[str, FillNode]) -> None:
+    def set_instance_fills(self, fills: Dict[str, "FillNode"]) -> None:
         self._instance_fills = fills
 
     def set_outer_context(self, context):
@@ -145,12 +143,14 @@ class Component(metaclass=SimplifiedInterfaceMediaDefiningClass):
         self,
         context,
         template: Template,
-        fills: Optional[Dict[str, FillNode]] = None,
+        fills: Optional[Dict[str, "FillNode"]] = None,
     ) -> None:
         if fills is None:
             fills = self.instance_fills
-        all_slots: List[SlotNode] = self.get_declared_slots(context, template)
-        slots: Dict[str, SlotNode] = {}
+        all_slots: List["SlotNode"] = self.get_declared_slots(
+            context, template
+        )
+        slots: Dict[str, "SlotNode"] = {}
         # Each declared slot must have a unique name.
         for slot in all_slots:
             slot_name = slot.name
@@ -186,7 +186,7 @@ class Component(metaclass=SimplifiedInterfaceMediaDefiningClass):
 
 def dfs_iter_slots_in_nodelist(
     nodelist: NodeList, template_name: str = None
-) -> Iterator[SlotNode]:
+) -> Iterator["SlotNode"]:
     from django_components.templatetags.component_tags import SlotNode
 
     nodes: List[Node] = list(nodelist)
diff --git a/django_components/templatetags/component_tags.py b/django_components/templatetags/component_tags.py
index c8cee67f..0ac8959e 100644
--- a/django_components/templatetags/component_tags.py
+++ b/django_components/templatetags/component_tags.py
@@ -1,5 +1,3 @@
-from __future__ import annotations
-
 from typing import TYPE_CHECKING, Dict, List, Optional, Tuple
 
 from django import template
@@ -154,7 +152,7 @@ class UserSlotVar:
     SlotNode.render() for implementation).
     """
 
-    def __init__(self, slot: SlotNode, context: Context):
+    def __init__(self, slot: "SlotNode", context: Context):
         self._slot = slot
         self._context = context
 
@@ -245,9 +243,9 @@ def do_slot(parser, token):
 class FillNode(Node):
     def __init__(
         self,
-        name_var: NameVariable,
+        name_var: "NameVariable",
         nodelist: NodeList,
-        alias_var: Optional[NameVariable] = None,
+        alias_var: Optional["NameVariable"] = None,
     ):
         self.name_var = name_var
         self.nodelist = nodelist
@@ -307,7 +305,7 @@ class ComponentNode(Node):
 
     def __init__(
         self,
-        name_var: NameVariable,
+        name_var: "NameVariable",
         context_args,
         context_kwargs,
         isolated_context=False,
@@ -521,7 +519,7 @@ def do_if_filled_block(parser, token):
 
 def parse_if_filled_bits(
     bits: List[str],
-) -> Tuple[Optional[NameVariable], Optional[bool]]:
+) -> Tuple[Optional["NameVariable"], Optional[bool]]:
     tag, args = bits[0], bits[1:]
     if tag in ("else_filled", "endif_filled"):
         if len(args) != 0:
@@ -551,7 +549,7 @@ class IfSlotFilledNode(Node):
     def __init__(
         self,
         branches: List[
-            Tuple[Optional[NameVariable], NodeList, Optional[bool]]
+            Tuple[Optional["NameVariable"], NodeList, Optional[bool]]
         ],
     ):
         # [(<slot name var | None (= condition)>, nodelist, <is_positive>)]
diff --git a/requirements-dev.txt b/requirements-dev.txt
index dd1b5b2c..47566c2d 100644
--- a/requirements-dev.txt
+++ b/requirements-dev.txt
@@ -18,7 +18,7 @@ colorama==0.4.6
     # via tox
 distlib==0.3.6
     # via virtualenv
-django==4.1.7
+django==4.2
     # via -r requirements-dev.in
 filelock==3.10.7
     # via
diff --git a/setup.cfg b/setup.cfg
index c03e366f..11ad2955 100644
--- a/setup.cfg
+++ b/setup.cfg
@@ -8,4 +8,5 @@ exclude =
     settings.py
     env
     .env
+    .venv
     .tox
\ No newline at end of file
diff --git a/setup.py b/setup.py
index c005457e..210db953 100644
--- a/setup.py
+++ b/setup.py
@@ -3,7 +3,7 @@ import os
 
 from setuptools import find_packages, setup
 
-VERSION = "0.26.2"
+VERSION = "0.26.3"
 
 setup(
     name="django_components",
@@ -11,7 +11,7 @@ setup(
     version=VERSION,
     description="A way to create simple reusable template components in Django.",
     long_description=open(
-        os.path.join(os.path.dirname(__file__), "README.md")
+        os.path.join(os.path.dirname(__file__), "README.md"), encoding="utf8"
     ).read(),
     long_description_content_type="text/markdown",
     author="Emil Stenström",
diff --git a/tox.ini b/tox.ini
index 069210ae..a430759e 100644
--- a/tox.ini
+++ b/tox.ini
@@ -13,11 +13,11 @@ envlist =
 
 [gh-actions]
 python =
-  3.6: py36
-  3.7: py37
-  3.8: py38
-  3.9: py39
-  3.10: py310, flake8, isort
+  3.6: py36-django{32}
+  3.7: py37-django{32}
+  3.8: py38-django{32,40}
+  3.9: py39-django{32,40}
+  3.10: py310-django{40}, flake8, isort
 fail_on_no_env = True
 
 [testenv]