diff --git a/packages/theme/src/cli/utilities/theme-uploader.ts b/packages/theme/src/cli/utilities/theme-uploader.ts
index f07405a9067..c676eb74d73 100644
--- a/packages/theme/src/cli/utilities/theme-uploader.ts
+++ b/packages/theme/src/cli/utilities/theme-uploader.ts
@@ -27,8 +27,8 @@ type FileBatch = ChecksumWithSize[]
  */
 // Limits for Bulk Requests
 export const MAX_BATCH_FILE_COUNT = 20
-// 1MB
-export const MAX_BATCH_BYTESIZE = 1024 * 1024
+// 512KB
+export const MAX_BATCH_BYTESIZE = 1024 * 512
 export const MAX_UPLOAD_RETRY_COUNT = 2
 
 export function uploadTheme(