diff --git a/README.md b/README.md
index 89d6fe5..5c65ded 100644
--- a/README.md
+++ b/README.md
@@ -5,5 +5,6 @@ v1:
     1. 使用内部RC
     2. button_less
     3. 硬件无关
-    4. 使能日志打印
+    4. 使能RTT日志打印
+    5. NRF_DFU_HW_VERSION 52
 ```
\ No newline at end of file