diff --git a/inflect/__init__.py b/inflect/__init__.py
index d0eded1..3eec27f 100644
--- a/inflect/__init__.py
+++ b/inflect/__init__.py
@@ -68,6 +68,7 @@
     Dict,
     Iterable,
     List,
+    Literal,
     Match,
     Optional,
     Sequence,
@@ -78,7 +79,8 @@
 
 from more_itertools import windowed_complete
 from typeguard import typechecked
-from typing_extensions import Annotated, Literal
+
+from .compat.py38 import Annotated
 
 
 class UnknownClassicalModeError(Exception):
diff --git a/inflect/compat/__init__.py b/inflect/compat/__init__.py
new file mode 100644
index 0000000..e69de29
diff --git a/inflect/compat/py38.py b/inflect/compat/py38.py
new file mode 100644
index 0000000..a2d01bd
--- /dev/null
+++ b/inflect/compat/py38.py
@@ -0,0 +1,7 @@
+import sys
+
+
+if sys.version_info > (3, 9):
+    from typing import Annotated
+else:  # pragma: no cover
+    from typing_extensions import Annotated  # noqa: F401
diff --git a/newsfragments/211.feature.rst b/newsfragments/211.feature.rst
new file mode 100644
index 0000000..3971e55
--- /dev/null
+++ b/newsfragments/211.feature.rst
@@ -0,0 +1 @@
+Restricted typing_extensions to Python 3.8.
\ No newline at end of file
diff --git a/pyproject.toml b/pyproject.toml
index 1cb9e5e..cb5a0a3 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -27,7 +27,7 @@ requires-python = ">=3.8"
 dependencies = [
 	"more_itertools",
 	"typeguard >= 4.0.1",
-	"typing_extensions",
+	"typing_extensions ; python_version<'3.9'",
 ]
 keywords = [
 	"plural",