1 files changed, 1 insertions, 1 deletions
diff --git a/tests/util/test_lrucache.py b/tests/util/test_lrucache.py
index a739a6aaaf..ce4f1cc30a 100644
--- a/tests/util/test_lrucache.py
+++ b/tests/util/test_lrucache.py
@@ -14,7 +14,7 @@
 # limitations under the License.
 
 
-from mock import Mock
+from unittest.mock import Mock
 
 from synapse.util.caches.lrucache import LruCache
 from synapse.util.caches.treecache import TreeCache