diff --git a/CHANGELOG.md b/CHANGELOG.md
index b03420a..2ef61e2 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,3 +1,7 @@
+v0.3.0 (in development)
+-----------------------
+- Remove unused `typing_extensions` dependency
+
 v0.2.2 (2024-12-01)
 -------------------
 - Support Python 3.10, 3.11, 3.12, and 3.13
diff --git a/pyproject.toml b/pyproject.toml
index 2fec42f..90597a2 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -44,7 +44,6 @@ classifiers = [
 
 dependencies = [
     "attrs >= 18.1",
-    "typing_extensions; python_version < '3.8'",
 ]
 
 [project.urls]
diff --git a/src/mailbits/__init__.py b/src/mailbits/__init__.py
index d968a65..648a085 100644
--- a/src/mailbits/__init__.py
+++ b/src/mailbits/__init__.py
@@ -12,7 +12,7 @@
 Visit <https://github.com/jwodder/mailbits> for more information.
 """
 
-__version__ = "0.2.2"
+__version__ = "0.3.0.dev1"
 __author__ = "John Thorvald Wodder II"
 __author_email__ = "mailbits@varonathe.org"
 __license__ = "MIT"
diff --git a/src/mailbits/email2dict.py b/src/mailbits/email2dict.py
index a9b5e04..f1e3f76 100644
--- a/src/mailbits/email2dict.py
+++ b/src/mailbits/email2dict.py
@@ -4,15 +4,9 @@
 from email import headerregistry as hr
 from email.message import Message
 import inspect
-import sys
-from typing import Any, Optional
+from typing import Any, Optional, TypedDict
 from .misc import message2email, parse_addresses
 
-if sys.version_info[:2] >= (3, 8):
-    from typing import TypedDict
-else:
-    from typing_extensions import TypedDict
-
 
 class MessageDict(TypedDict):
     unixfrom: Optional[str]