1 files changed, 1 insertions, 1 deletions

diff --git a/tests/handlers/test_cas.py b/tests/handlers/test_cas.py

index 7975af243c..0444b26798 100644
--- a/tests/handlers/test_cas.py
+++ b/tests/handlers/test_cas.py
@@ -11,7 +11,7 @@
 #  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 #  See the License for the specific language governing permissions and
 #  limitations under the License.
-from mock import Mock
+from unittest.mock import Mock
 
 from synapse.handlers.cas_handler import CasResponse