diff --git a/src/CloudSerial.h b/src/CloudSerial.h
index 0a985a300..76ffe219b 100644
--- a/src/CloudSerial.h
+++ b/src/CloudSerial.h
@@ -33,8 +33,8 @@
  * DEFINES
  ******************************************************************************/
 
-#define CLOUD_SERIAL_TX_BUFFER_SIZE 64
-#define CLOUD_SERIAL_RX_BUFFER_SIZE 512
+#define CLOUD_SERIAL_TX_BUFFER_SIZE 32
+#define CLOUD_SERIAL_RX_BUFFER_SIZE 32
 
 /******************************************************************************
  * CLASS DECLARATION