diff --git a/cmd/evening_detective_server/main.go b/cmd/evening_detective_server/main.go
index 2f89abb..1c0be88 100644
--- a/cmd/evening_detective_server/main.go
+++ b/cmd/evening_detective_server/main.go
@@ -70,7 +70,7 @@ const maxFileSize = 64 << 20
 
 const maxFileUploadBody = (int64(maxFileSize)+2)/3*4 + 2*1024
 
-const grpcMsgLimit = maxFileSize + (1 << 20)
+const grpcMsgLimit = 257 << 20
 
 func main() {
 	_ = godotenv.Load()