diff --git a/.librarian/state.yaml b/.librarian/state.yaml
index bd39d2a7c0a4..739dba19ffb0 100644
--- a/.librarian/state.yaml
+++ b/.librarian/state.yaml
@@ -3367,7 +3367,7 @@ libraries:
     tag_format: '{id}-v{version}'
   - id: google-cloud-storage
     version: 3.10.1
-    last_generated_commit: 280bed6c219637610d09cebf696958dd99fd2f76
+    last_generated_commit: 2233f63baf69c2a481f30180045fcf036242781d
     apis:
       - path: google/storage/v2
         service_config: storage_v2.yaml
diff --git a/packages/google-cloud-storage/google/cloud/_storage_v2/types/storage.py b/packages/google-cloud-storage/google/cloud/_storage_v2/types/storage.py
index 8d326c0936f7..f5678132c6bc 100644
--- a/packages/google-cloud-storage/google/cloud/_storage_v2/types/storage.py
+++ b/packages/google-cloud-storage/google/cloud/_storage_v2/types/storage.py
@@ -1798,6 +1798,9 @@ class WriteObjectResponse(proto.Message):
             finalized.
 
             This field is a member of `oneof`_ ``write_status``.
+        persisted_data_checksums (google.cloud._storage_v2.types.ObjectChecksums):
+            If persisted_size is set, contains checksums of persisted
+            data.
     """
 
     persisted_size: int = proto.Field(
@@ -1811,6 +1814,11 @@ class WriteObjectResponse(proto.Message):
         oneof="write_status",
         message="Object",
     )
+    persisted_data_checksums: "ObjectChecksums" = proto.Field(
+        proto.MESSAGE,
+        number=3,
+        message="ObjectChecksums",
+    )
 
 
 class AppendObjectSpec(proto.Message):
@@ -1950,8 +1958,9 @@ class BidiWriteObjectRequest(proto.Message):
         object_checksums (google.cloud._storage_v2.types.ObjectChecksums):
             Optional. Checksums for the complete object. If the
             checksums computed by the service don't match the specified
-            checksums the call fails. Might only be provided in the
-            first request or the last request (with finish_write set).
+            checksums the call fails. May be provided in the last
+            request (with finish_write set). For non-appendable objects
+            only, may also be provided in the first request.
         state_lookup (bool):
             Optional. For each ``BidiWriteObjectRequest`` where
             ``state_lookup`` is ``true`` or the client closes the
@@ -2058,6 +2067,9 @@ class BidiWriteObjectResponse(proto.Message):
             finalized.
 
             This field is a member of `oneof`_ ``write_status``.
+        persisted_data_checksums (google.cloud._storage_v2.types.ObjectChecksums):
+            If persisted_size is set, contains checksums of persisted
+            data.
         write_handle (google.cloud._storage_v2.types.BidiWriteHandle):
             An optional write handle that is returned
             periodically in response messages. Clients
@@ -2078,6 +2090,11 @@ class BidiWriteObjectResponse(proto.Message):
         oneof="write_status",
         message="Object",
     )
+    persisted_data_checksums: "ObjectChecksums" = proto.Field(
+        proto.MESSAGE,
+        number=4,
+        message="ObjectChecksums",
+    )
     write_handle: "BidiWriteHandle" = proto.Field(
         proto.MESSAGE,
         number=3,
@@ -2276,6 +2293,9 @@ class QueryWriteStatusResponse(proto.Message):
             finalized.
 
             This field is a member of `oneof`_ ``write_status``.
+        persisted_data_checksums (google.cloud._storage_v2.types.ObjectChecksums):
+            If persisted_size is set, contains checksums of persisted
+            data.
     """
 
     persisted_size: int = proto.Field(
@@ -2289,6 +2309,11 @@ class QueryWriteStatusResponse(proto.Message):
         oneof="write_status",
         message="Object",
     )
+    persisted_data_checksums: "ObjectChecksums" = proto.Field(
+        proto.MESSAGE,
+        number=3,
+        message="ObjectChecksums",
+    )
 
 
 class RewriteObjectRequest(proto.Message):