diff --git a/third_party/2and3/google/protobuf/any_pb2.pyi b/third_party/2and3/google/protobuf/any_pb2.pyi
index 4dac6e8a2ed0..b46b76a45bf9 100644
--- a/third_party/2and3/google/protobuf/any_pb2.pyi
+++ b/third_party/2and3/google/protobuf/any_pb2.pyi
@@ -9,6 +9,8 @@ from google.protobuf.message import (
     Message as google___protobuf___message___Message,
 )
 
+from google.protobuf.internal import well_known_types
+
 from typing import (
     Optional as typing___Optional,
     Text as typing___Text,
@@ -27,7 +29,7 @@ builtin___int = int
 
 DESCRIPTOR: google___protobuf___descriptor___FileDescriptor = ...
 
-class Any(google___protobuf___message___Message):
+class Any(google___protobuf___message___Message, well_known_types.Any_):
     DESCRIPTOR: google___protobuf___descriptor___Descriptor = ...
     type_url: typing___Text = ...
     value: builtin___bytes = ...
diff --git a/third_party/2and3/google/protobuf/duration_pb2.pyi b/third_party/2and3/google/protobuf/duration_pb2.pyi
index 0d5a2058a462..6c9334a13fd3 100644
--- a/third_party/2and3/google/protobuf/duration_pb2.pyi
+++ b/third_party/2and3/google/protobuf/duration_pb2.pyi
@@ -9,6 +9,8 @@ from google.protobuf.message import (
     Message as google___protobuf___message___Message,
 )
 
+from google.protobuf.internal import well_known_types
+
 from typing import (
     Optional as typing___Optional,
 )
@@ -26,7 +28,7 @@ builtin___int = int
 
 DESCRIPTOR: google___protobuf___descriptor___FileDescriptor = ...
 
-class Duration(google___protobuf___message___Message):
+class Duration(google___protobuf___message___Message, well_known_types.Duration):
     DESCRIPTOR: google___protobuf___descriptor___Descriptor = ...
     seconds: builtin___int = ...
     nanos: builtin___int = ...
diff --git a/third_party/2and3/google/protobuf/field_mask_pb2.pyi b/third_party/2and3/google/protobuf/field_mask_pb2.pyi
index acc07d913e4f..f8dc893d034a 100644
--- a/third_party/2and3/google/protobuf/field_mask_pb2.pyi
+++ b/third_party/2and3/google/protobuf/field_mask_pb2.pyi
@@ -13,6 +13,8 @@ from google.protobuf.message import (
     Message as google___protobuf___message___Message,
 )
 
+from google.protobuf.internal import well_known_types
+
 from typing import (
     Iterable as typing___Iterable,
     Optional as typing___Optional,
@@ -32,7 +34,7 @@ builtin___int = int
 
 DESCRIPTOR: google___protobuf___descriptor___FileDescriptor = ...
 
-class FieldMask(google___protobuf___message___Message):
+class FieldMask(google___protobuf___message___Message, well_known_types.FieldMask):
     DESCRIPTOR: google___protobuf___descriptor___Descriptor = ...
     paths: google___protobuf___internal___containers___RepeatedScalarFieldContainer[typing___Text] = ...
 
diff --git a/third_party/2and3/google/protobuf/struct_pb2.pyi b/third_party/2and3/google/protobuf/struct_pb2.pyi
index 55ea551f5414..bd28102331a7 100644
--- a/third_party/2and3/google/protobuf/struct_pb2.pyi
+++ b/third_party/2and3/google/protobuf/struct_pb2.pyi
@@ -18,6 +18,8 @@ from google.protobuf.message import (
     Message as google___protobuf___message___Message,
 )
 
+from google.protobuf.internal import well_known_types
+
 from typing import (
     Iterable as typing___Iterable,
     Mapping as typing___Mapping,
@@ -50,7 +52,7 @@ class _NullValue(google___protobuf___internal___enum_type_wrapper____EnumTypeWra
 NULL_VALUE = typing___cast(NullValueValue, 0)
 type___NullValue = NullValue
 
-class Struct(google___protobuf___message___Message):
+class Struct(google___protobuf___message___Message, well_known_types.Struct):
     DESCRIPTOR: google___protobuf___descriptor___Descriptor = ...
     class FieldsEntry(google___protobuf___message___Message):
         DESCRIPTOR: google___protobuf___descriptor___Descriptor = ...
@@ -106,7 +108,7 @@ class Value(google___protobuf___message___Message):
     def WhichOneof(self, oneof_group: typing_extensions___Literal[u"kind",b"kind"]) -> typing_extensions___Literal["null_value","number_value","string_value","bool_value","struct_value","list_value"]: ...
 type___Value = Value
 
-class ListValue(google___protobuf___message___Message):
+class ListValue(google___protobuf___message___Message, well_known_types.ListValue):
     DESCRIPTOR: google___protobuf___descriptor___Descriptor = ...
 
     @property
diff --git a/third_party/2and3/google/protobuf/timestamp_pb2.pyi b/third_party/2and3/google/protobuf/timestamp_pb2.pyi
index 9b0334a16550..132244a8139f 100644
--- a/third_party/2and3/google/protobuf/timestamp_pb2.pyi
+++ b/third_party/2and3/google/protobuf/timestamp_pb2.pyi
@@ -9,6 +9,8 @@ from google.protobuf.message import (
     Message as google___protobuf___message___Message,
 )
 
+from google.protobuf.internal import well_known_types
+
 from typing import (
     Optional as typing___Optional,
 )
@@ -26,7 +28,7 @@ builtin___int = int
 
 DESCRIPTOR: google___protobuf___descriptor___FileDescriptor = ...
 
-class Timestamp(google___protobuf___message___Message):
+class Timestamp(google___protobuf___message___Message, well_known_types.Timestamp):
     DESCRIPTOR: google___protobuf___descriptor___Descriptor = ...
     seconds: builtin___int = ...
     nanos: builtin___int = ...