diff --git a/elegantbook-cn.tex b/elegantbook-cn.tex
index da93ec6..a81f074 100644
--- a/elegantbook-cn.tex
+++ b/elegantbook-cn.tex
@@ -258,7 +258,7 @@ tlmgr update --self --all --reinstall-forcibly-removed
   \item \textit{定理类环境}，包含标题和内容两部分，全部定理类环境的编号均以章节编号。根据格式的不同分为 3 种
     \begin{itemize}
       \item \textcolor{main}{\textbf{definition}} 环境，颜色为 \textcolor{main}{main}；
-      \item \textcolor{second}{\textbf{theorem、lemma、corollary}} 环境，颜色为 \textcolor{second} {second}；
+      \item \textcolor{second}{\textbf{theorem、lemma、corollary、axiom、postulate}} 环境，颜色为 \textcolor{second} {second}；
       \item \textcolor{third}{\textbf{proposition}} 环境，颜色为 \textcolor{third}{third}。
     \end{itemize}
   \item \textit{示例类环境}，有 \textbf{example、problem、exercise} 环境（对应于例、例题、练习），自动编号，编号以章节为单位，其中 \textbf{exercise} 有提示符。
diff --git a/elegantbook-en.tex b/elegantbook-en.tex
index 2e5abb0..14f24f2 100644
--- a/elegantbook-en.tex
+++ b/elegantbook-en.tex
@@ -210,7 +210,7 @@ In this template, we defined four different theorem class environments
 \item \textit{Theorem Environments}, including title and content, numbering corresponding to chapter. Three types depending on the format:
    \begin{itemize}
       \item \textcolor{main}{\textbf{definition}} environment, the color is  \textcolor{main}{main};
-      \item \textcolor{second}{\textbf{theorem, lemma, corollary}} environment, the color is \textcolor{second} {second};
+      \item \textcolor{second}{\textbf{theorem, lemma, corollary, axiom, postulate}} environment, the color is \textcolor{second} {second};
       \item \textcolor{third}{\textbf{proposition}} environment, the color is \textcolor{third}{third}.
    \end{itemize}
 \item \textit{Example Environment}, including \textbf{example, exercise, problem} environment, auto numbering according to chapter.