diff --git a/install/centos.sh b/install/centos.sh
index 7140263..5ec90f8 100644
--- a/install/centos.sh
+++ b/install/centos.sh
@@ -24,7 +24,7 @@ fi
 
 autoconf_dl="http://mirrors.ustc.edu.cn/gnu/autoconf/autoconf-2.64.tar.gz"
 automake_dl="http://mirrors.ustc.edu.cn/gnu/automake/automake-1.12.tar.gz"
-libtool_dl="http://mirror.bjtu.edu.cn/gnu/libtool/libtool-2.4.2.tar.gz"
+libtool_dl="ftp://ftp.gnu.org/gnu/libtool/libtool-2.4.2.tar.gz"
 freetds_dl="http://ibiblio.org/pub/Linux/ALPHA/freetds/stable/freetds-stable.tgz"
 pcre_dl="ftp://ftp.csx.cam.ac.uk/pub/software/programming/pcre/pcre-8.21.tar.gz"
 nginx_dl="http://nginx.org/download/nginx-0.8.55.tar.gz"