1 files changed, 11 insertions, 2 deletions
diff --git a/synapse/util/caches/dictionary_cache.py b/synapse/util/caches/dictionary_cache.py
index 1e6696332f..14bd3ba3b0 100644
--- a/synapse/util/caches/dictionary_cache.py
+++ b/synapse/util/caches/dictionary_cache.py
@@ -21,10 +21,19 @@
 import enum
 import logging
 import threading
-from typing import Dict, Generic, Iterable, Optional, Set, Tuple, TypeVar, Union
+from typing import (
+    Dict,
+    Generic,
+    Iterable,
+    Literal,
+    Optional,
+    Set,
+    Tuple,
+    TypeVar,
+    Union,
+)
 
 import attr
-from typing_extensions import Literal
 
 from synapse.util.caches.lrucache import LruCache
 from synapse.util.caches.treecache import TreeCache