diff --git a/components/utilities/ymodem/ymodem.h b/components/utilities/ymodem/ymodem.h
index daed61d15ffc1205a1a608e33ba59d4cbb68c323..43ee6f5c10fbd39d94c8909b5adfdfcdac9020fe 100644
--- a/components/utilities/ymodem/ymodem.h
+++ b/components/utilities/ymodem/ymodem.h
@@ -52,7 +52,7 @@ enum rym_code {
 #endif
 /* how many ticks between two handshake code. */
 #ifndef RYM_CHD_INTV_TICK
-#define RYM_CHD_INTV_TICK (RT_TICK_PER_SECOND / 4)
+#define RYM_CHD_INTV_TICK (RT_TICK_PER_SECOND * 3)
 #endif
 
 enum rym_stage {