diff --git a/packages/google-cloud-domains/tests/unit/gapic/domains_v1/test_domains.py b/packages/google-cloud-domains/tests/unit/gapic/domains_v1/test_domains.py
index 5bd915416ef6..9fcb425c456d 100644
--- a/packages/google-cloud-domains/tests/unit/gapic/domains_v1/test_domains.py
+++ b/packages/google-cloud-domains/tests/unit/gapic/domains_v1/test_domains.py
@@ -47,6 +47,7 @@
 from google.type import postal_address_pb2  # type: ignore
 import grpc
 from grpc.experimental import aio
+from proto.marshal.rules import wrappers
 from proto.marshal.rules.dates import DurationRule, TimestampRule
 import pytest
 
diff --git a/packages/google-cloud-domains/tests/unit/gapic/domains_v1beta1/test_domains.py b/packages/google-cloud-domains/tests/unit/gapic/domains_v1beta1/test_domains.py
index a8859c979050..324fb509a02b 100644
--- a/packages/google-cloud-domains/tests/unit/gapic/domains_v1beta1/test_domains.py
+++ b/packages/google-cloud-domains/tests/unit/gapic/domains_v1beta1/test_domains.py
@@ -47,6 +47,7 @@
 from google.type import postal_address_pb2  # type: ignore
 import grpc
 from grpc.experimental import aio
+from proto.marshal.rules import wrappers
 from proto.marshal.rules.dates import DurationRule, TimestampRule
 import pytest