diff --git a/synapse/events/utils.py b/synapse/events/utils.py
index e1ff851fe19d..43c3241fb0d1 100644
--- a/synapse/events/utils.py
+++ b/synapse/events/utils.py
@@ -39,7 +39,6 @@
 
 if TYPE_CHECKING:
     from synapse.handlers.relations import BundledAggregations
-    from synapse.server import HomeServer
 
 
 # Split strings on "." but not "\." This uses a negative lookbehind assertion for '\'
diff --git a/synapse/storage/databases/main/relations.py b/synapse/storage/databases/main/relations.py
index 8789bb095387..1e08be111cc3 100644
--- a/synapse/storage/databases/main/relations.py
+++ b/synapse/storage/databases/main/relations.py
@@ -13,18 +13,7 @@
 # limitations under the License.
 
 import logging
-from typing import (
-    TYPE_CHECKING,
-    Collection,
-    Dict,
-    Iterable,
-    List,
-    Optional,
-    Set,
-    Tuple,
-    Union,
-    cast,
-)
+from typing import Collection, Dict, Iterable, List, Optional, Set, Tuple, Union, cast
 
 from synapse.api.constants import RelationTypes
 from synapse.events import EventBase