diff --git a/articles/20230728-sbi-firmware-analyze-1.md b/articles/20230728-sbi-firmware-analyze-1.md
index 3171c14e4d33dbda5c88473d2107b8bee13b5b65..a8306458b9373ae6e3a5f8c5ba9c62df66afc58a 100644
--- a/articles/20230728-sbi-firmware-analyze-1.md
+++ b/articles/20230728-sbi-firmware-analyze-1.md
@@ -6,7 +6,7 @@
 > Proposal:  [RISC-V Linux 内核 SBI 调用技术分析](https://gitee.com/tinylab/riscv-linux/issues/I64YC4)<br/>
 > Sponsor:   PLCT Lab, ISCAS
 
-# OpenSBI 固件代码分析（1）：启动流程
+# OpenSBI 固件代码分析（一）：启动流程
 
 ## 前言