diff --git a/google/pubsub_v1/services/schema_service/async_client.py b/google/pubsub_v1/services/schema_service/async_client.py
index 251b59e75..68b896e48 100644
--- a/google/pubsub_v1/services/schema_service/async_client.py
+++ b/google/pubsub_v1/services/schema_service/async_client.py
@@ -931,7 +931,6 @@ async def sample_delete_schema_revision():
                 # Initialize request argument(s)
                 request = pubsub_v1.DeleteSchemaRevisionRequest(
                     name="name_value",
-                    revision_id="revision_id_value",
                 )
 
                 # Make the request
@@ -945,20 +944,18 @@ async def sample_delete_schema_revision():
                 The request object. Request for the
                 `DeleteSchemaRevision` method.
             name (:class:`str`):
-                Required. The name of the schema
-                revision to be deleted, with a revision
-                ID explicitly included.
-                Example:
-                projects/123/schemas/my-schema@c7cfa2a8
+                Required. The name of the schema revision to be deleted,
+                with a revision ID explicitly included.
+
+                Example: ``projects/123/schemas/my-schema@c7cfa2a8``
 
                 This corresponds to the ``name`` field
                 on the ``request`` instance; if ``request`` is provided, this
                 should not be set.
             revision_id (:class:`str`):
-                Required. The revision ID to roll
-                back to. It must be a revision of the
-                same schema.
-                  Example: c7cfa2a8
+                Optional. This field is deprecated and should not be
+                used for specifying the revision ID. The revision ID
+                should be specified via the ``name`` parameter.
 
                 This corresponds to the ``revision_id`` field
                 on the ``request`` instance; if ``request`` is provided, this
diff --git a/google/pubsub_v1/services/schema_service/client.py b/google/pubsub_v1/services/schema_service/client.py
index da1be8d25..d217c49f0 100644
--- a/google/pubsub_v1/services/schema_service/client.py
+++ b/google/pubsub_v1/services/schema_service/client.py
@@ -1163,7 +1163,6 @@ def sample_delete_schema_revision():
                 # Initialize request argument(s)
                 request = pubsub_v1.DeleteSchemaRevisionRequest(
                     name="name_value",
-                    revision_id="revision_id_value",
                 )
 
                 # Make the request
@@ -1177,20 +1176,18 @@ def sample_delete_schema_revision():
                 The request object. Request for the
                 `DeleteSchemaRevision` method.
             name (str):
-                Required. The name of the schema
-                revision to be deleted, with a revision
-                ID explicitly included.
-                Example:
-                projects/123/schemas/my-schema@c7cfa2a8
+                Required. The name of the schema revision to be deleted,
+                with a revision ID explicitly included.
+
+                Example: ``projects/123/schemas/my-schema@c7cfa2a8``
 
                 This corresponds to the ``name`` field
                 on the ``request`` instance; if ``request`` is provided, this
                 should not be set.
             revision_id (str):
-                Required. The revision ID to roll
-                back to. It must be a revision of the
-                same schema.
-                  Example: c7cfa2a8
+                Optional. This field is deprecated and should not be
+                used for specifying the revision ID. The revision ID
+                should be specified via the ``name`` parameter.
 
                 This corresponds to the ``revision_id`` field
                 on the ``request`` instance; if ``request`` is provided, this
diff --git a/google/pubsub_v1/types/schema.py b/google/pubsub_v1/types/schema.py
index 8f778a285..27a6efbbd 100644
--- a/google/pubsub_v1/types/schema.py
+++ b/google/pubsub_v1/types/schema.py
@@ -385,15 +385,14 @@ class DeleteSchemaRevisionRequest(proto.Message):
 
     Attributes:
         name (str):
-            Required. The name of the schema revision to
-            be deleted, with a revision ID explicitly
-            included.
-            Example: projects/123/schemas/my-schema@c7cfa2a8
-        revision_id (str):
-            Required. The revision ID to roll back to.
-            It must be a revision of the same schema.
+            Required. The name of the schema revision to be deleted,
+            with a revision ID explicitly included.
 
-              Example: c7cfa2a8
+            Example: ``projects/123/schemas/my-schema@c7cfa2a8``
+        revision_id (str):
+            Optional. This field is deprecated and should not be used
+            for specifying the revision ID. The revision ID should be
+            specified via the ``name`` parameter.
     """
 
     name: str = proto.Field(
diff --git a/samples/generated_samples/pubsub_v1_generated_schema_service_delete_schema_revision_async.py b/samples/generated_samples/pubsub_v1_generated_schema_service_delete_schema_revision_async.py
index 3e3d178a0..67d0ce7a5 100644
--- a/samples/generated_samples/pubsub_v1_generated_schema_service_delete_schema_revision_async.py
+++ b/samples/generated_samples/pubsub_v1_generated_schema_service_delete_schema_revision_async.py
@@ -41,7 +41,6 @@ async def sample_delete_schema_revision():
     # Initialize request argument(s)
     request = pubsub_v1.DeleteSchemaRevisionRequest(
         name="name_value",
-        revision_id="revision_id_value",
     )
 
     # Make the request
diff --git a/samples/generated_samples/pubsub_v1_generated_schema_service_delete_schema_revision_sync.py b/samples/generated_samples/pubsub_v1_generated_schema_service_delete_schema_revision_sync.py
index 3aad86c95..45d173a19 100644
--- a/samples/generated_samples/pubsub_v1_generated_schema_service_delete_schema_revision_sync.py
+++ b/samples/generated_samples/pubsub_v1_generated_schema_service_delete_schema_revision_sync.py
@@ -41,7 +41,6 @@ def sample_delete_schema_revision():
     # Initialize request argument(s)
     request = pubsub_v1.DeleteSchemaRevisionRequest(
         name="name_value",
-        revision_id="revision_id_value",
     )
 
     # Make the request
diff --git a/samples/generated_samples/snippet_metadata_google.pubsub.v1.json b/samples/generated_samples/snippet_metadata_google.pubsub.v1.json
index 144fda2f6..181a30ef9 100644
--- a/samples/generated_samples/snippet_metadata_google.pubsub.v1.json
+++ b/samples/generated_samples/snippet_metadata_google.pubsub.v1.json
@@ -1845,12 +1845,12 @@
       "regionTag": "pubsub_v1_generated_SchemaService_DeleteSchemaRevision_async",
       "segments": [
         {
-          "end": 52,
+          "end": 51,
           "start": 27,
           "type": "FULL"
         },
         {
-          "end": 52,
+          "end": 51,
           "start": 27,
           "type": "SHORT"
         },
@@ -1860,18 +1860,18 @@
           "type": "CLIENT_INITIALIZATION"
         },
         {
-          "end": 46,
+          "end": 45,
           "start": 41,
           "type": "REQUEST_INITIALIZATION"
         },
         {
-          "end": 49,
-          "start": 47,
+          "end": 48,
+          "start": 46,
           "type": "REQUEST_EXECUTION"
         },
         {
-          "end": 53,
-          "start": 50,
+          "end": 52,
+          "start": 49,
           "type": "RESPONSE_HANDLING"
         }
       ],
@@ -1929,12 +1929,12 @@
       "regionTag": "pubsub_v1_generated_SchemaService_DeleteSchemaRevision_sync",
       "segments": [
         {
-          "end": 52,
+          "end": 51,
           "start": 27,
           "type": "FULL"
         },
         {
-          "end": 52,
+          "end": 51,
           "start": 27,
           "type": "SHORT"
         },
@@ -1944,18 +1944,18 @@
           "type": "CLIENT_INITIALIZATION"
         },
         {
-          "end": 46,
+          "end": 45,
           "start": 41,
           "type": "REQUEST_INITIALIZATION"
         },
         {
-          "end": 49,
-          "start": 47,
+          "end": 48,
+          "start": 46,
           "type": "REQUEST_EXECUTION"
         },
         {
-          "end": 53,
-          "start": 50,
+          "end": 52,
+          "start": 49,
           "type": "RESPONSE_HANDLING"
         }
       ],