diff --git a/INSTALL.md b/INSTALL.md
index 396c39df..49a1c7ad 100644
--- a/INSTALL.md
+++ b/INSTALL.md
@@ -6,36 +6,43 @@ To install LBBS, please perform the following steps:
    Follow README.md under [leafok_bbs](https://github.com/leafok88/leafok_bbs) to initialize the database structure shared by both web version and telnet version.   
    It is highly recommended to finish the configuration steps of web version first and make sure those features could work properly.
 
-1) Extract the source files from a tarball or export from GitHub  
+1) Common requirements  
+   gcc >= 14.2.0  
+   autoconf >= 2.68  
+   automake >= 1.16  
+   libssh >= 0.11.1
+   PHP >= 8.2  
+   MySQL >= 8.4
+
+2) Extract the source files from a tarball or export from GitHub  
    Run the following command to set up the autoconf/automake environment,  
-   sh ./autogen.sh  
-   and fix any error if exists.
+   sh ./autogen.sh
 
-2) Compile source files  
+3) Compile source files  
    ./configure --prefix=/usr/local/lbbs  
    make
 
-3) Create user and group  
+4) Create user and group  
    sudo useradd bbs
 
-4) Install binary files and data files  
+5) Install binary files and data files  
    sudo make install
 
-5) Modify following configuration files  
+6) Modify following configuration files  
    Default configuration files is saved as *.default, you should rename them first.  
    /usr/local/lbbs/conf/bbsd.conf  
    /usr/local/lbbs/utils/conf/db_conn.inc.php  
 
-6) Generate menu configuration file with section data by running the script  
+7) Generate menu configuration file with section data by running the script  
    sudo -u bbs php /usr/local/lbbs/utils/bin/gen_section_menu.php  
    sudo -u bbs php /usr/local/lbbs/utils/bin/gen_ex_list.php  
 
-7) Create or copy SSH2 RSA certificate into /usr/local/lbbs/conf  
+8) Create or copy SSH2 RSA certificate into /usr/local/lbbs/conf  
    ssh-keygen -t rsa -C "Your Server Name" -f ssh_host_rsa_key
 
-8) Startup  
+9) Startup  
    sudo /usr/local/lbbs/bin/bbsd
 
-9) Set up systemd  
+10) Set up systemd  
    Create your own /usr/lib/systemd/system/lbbs.service from the sample at conf/lbbs.service.default, and make any change if necessary.  
    Reload daemon config and start the service.