diff --git a/tensorboard/uploader/uploader.py b/tensorboard/uploader/uploader.py
index 9b98d9e999..1a6e795148 100644
--- a/tensorboard/uploader/uploader.py
+++ b/tensorboard/uploader/uploader.py
@@ -56,7 +56,7 @@
 # Deadline Exceeded errors in the RPC server.
 #
 # [1]: https://github.com/grpc/grpc/blob/e70d8582b4b0eedc45e3d25a57b58a08b94a9f4a/include/grpc/impl/codegen/grpc_types.h#L447  # pylint: disable=line-too-long
-_MAX_REQUEST_LENGTH_BYTES = 1024 * 1024
+_MAX_REQUEST_LENGTH_BYTES = 1024 * 128
 
 logger = tb_logging.get_logger()