diff --git a/platform/kendryte/k210/platform.h b/platform/kendryte/k210/platform.h
index 0596a919..8e4664f5 100644
--- a/platform/kendryte/k210/platform.h
+++ b/platform/kendryte/k210/platform.h
@@ -12,7 +12,7 @@
 #include <sbi/riscv_io.h>
 
 #define K210_HART_COUNT		2
-#define K210_HART_STACK_SIZE	4096
+#define K210_HART_STACK_SIZE	8192
 
 #define K210_UART_BAUDRATE	115200