diff --git a/tests/unit/gapic/bigtable_admin_v2/test_bigtable_instance_admin.py b/tests/unit/gapic/bigtable_admin_v2/test_bigtable_instance_admin.py
index b841a9e56..c8c1fe356 100644
--- a/tests/unit/gapic/bigtable_admin_v2/test_bigtable_instance_admin.py
+++ b/tests/unit/gapic/bigtable_admin_v2/test_bigtable_instance_admin.py
@@ -27,7 +27,7 @@
 import math
 import pytest
 from proto.marshal.rules.dates import DurationRule, TimestampRule
-
+from proto.marshal.rules import wrappers
 
 from google.api_core import client_options
 from google.api_core import exceptions as core_exceptions
diff --git a/tests/unit/gapic/bigtable_admin_v2/test_bigtable_table_admin.py b/tests/unit/gapic/bigtable_admin_v2/test_bigtable_table_admin.py
index 2f53bbe5f..71d3b998b 100644
--- a/tests/unit/gapic/bigtable_admin_v2/test_bigtable_table_admin.py
+++ b/tests/unit/gapic/bigtable_admin_v2/test_bigtable_table_admin.py
@@ -27,7 +27,7 @@
 import math
 import pytest
 from proto.marshal.rules.dates import DurationRule, TimestampRule
-
+from proto.marshal.rules import wrappers
 
 from google.api_core import client_options
 from google.api_core import exceptions as core_exceptions
diff --git a/tests/unit/gapic/bigtable_v2/test_bigtable.py b/tests/unit/gapic/bigtable_v2/test_bigtable.py
index c52f124c7..f3207869b 100644
--- a/tests/unit/gapic/bigtable_v2/test_bigtable.py
+++ b/tests/unit/gapic/bigtable_v2/test_bigtable.py
@@ -27,7 +27,7 @@
 import math
 import pytest
 from proto.marshal.rules.dates import DurationRule, TimestampRule
-
+from proto.marshal.rules import wrappers
 
 from google.api_core import client_options
 from google.api_core import exceptions as core_exceptions