diff --git a/README-zh.md b/README-zh.md
index eda9fdc..579e21c 100644
--- a/README-zh.md
+++ b/README-zh.md
@@ -1,4 +1,4 @@
-# 中文版 lshort，6.02 版
+# 中文版 lshort，6.03 版
 
 ## 许可证
 
diff --git a/README.md b/README.md
index a6de7cf..4fb51ff 100644
--- a/README.md
+++ b/README.md
@@ -1,4 +1,4 @@
-# The Not So Short Introduction To LaTeX (Chinese Edition), v6.02
+# The Not So Short Introduction To LaTeX (Chinese Edition), v6.03
 
 ## License
 
diff --git a/src/lshort-zh-cn.tex b/src/lshort-zh-cn.tex
index 490211a..b2acba0 100644
--- a/src/lshort-zh-cn.tex
+++ b/src/lshort-zh-cn.tex
@@ -1,9 +1,9 @@
 \documentclass[a4paper]{book}
 \usepackage{lshort-zh-cn-style}
 
-\def\lshortversionoriginal{6.2}
-\def\lshortdateoriginal{Februrary 28, 2018}
-\def\lshortversioncn{6.02}
+\def\lshortversionoriginal{6.4}
+\def\lshortdateoriginal{March 9, 2021}
+\def\lshortversioncn{6.03}
 
 \hypersetup{
   pdftitle={The Short Introduction to LaTeX2e (Chinese Simplified)},