diff --git a/nginx/default.conf b/nginx/default.conf
index 05f9071..6ea7f01 100644
--- a/nginx/default.conf
+++ b/nginx/default.conf
@@ -2,7 +2,7 @@ server {
   listen 80;
   listen [::]:80;
 
-  server_name api.dev.dadok.site;
+  server_name api.dev.dadok.app;
 
   location / {
     if ($request_method = 'OPTIONS') {
@@ -28,11 +28,11 @@ server {
 
 server {
     listen 443 ssl;
-    server_name api.dev.dadok.site;
+    server_name api.dev.dadok.app;
     server_tokens off;
 
-    ssl_certificate /etc/letsencrypt/live/api.dev.dadok.site/fullchain.pem; # example.org를 도메인으로 변경
-    ssl_certificate_key /etc/letsencrypt/live/api.dev.dadok.site/privkey.pem; # example.or를 도메인으로 변경
+    ssl_certificate /etc/letsencrypt/live/api.dev.dadok.app/fullchain.pem; # example.org를 도메인으로 변경
+    ssl_certificate_key /etc/letsencrypt/live/api.dev.dadok.app/privkey.pem; # example.or를 도메인으로 변경
     include /etc/letsencrypt/options-ssl-nginx.conf;
 
     location / {
@@ -41,4 +41,4 @@ server {
         proxy_set_header    X-Real-IP           $remote_addr;
         proxy_set_header    X-Forwarded-For     $proxy_add_x_forwarded_for;
     }
-}
\ No newline at end of file
+}