diff --git a/install.sh b/install.sh
index 1b17003..3b429c1 100644
--- a/install.sh
+++ b/install.sh
@@ -372,7 +372,7 @@ nginx_conf_add(){
         listen 443 ssl http2;
         ssl_certificate       /data/v2ray.crt;
         ssl_certificate_key   /data/v2ray.key;
-        ssl_protocols         TLSv1.3;
+        ssl_protocols         TLSv1.2 TLSv1.3;
         ssl_ciphers           TLS13-AES-256-GCM-SHA384:TLS13-CHACHA20-POLY1305-SHA256:TLS13-AES-128-GCM-SHA256:TLS13-AES-128-CCM-8-SHA256:TLS13-AES-128-CCM-SHA256:EECDH+CHACHA20:EECDH+CHACHA20-draft:EECDH+ECDSA+AES128:EECDH+aRSA+AES128:RSA+AES128:EECDH+ECDSA+AES256:EECDH+aRSA+AES256:RSA+AES256:EECDH+ECDSA+3DES:EECDH+aRSA+3DES:RSA+3DES:!MD5;
         server_name           serveraddr.com;
         index index.html index.htm;