diff --git a/.env b/.env
index 602ef09..f74825f 100644
--- a/.env
+++ b/.env
@@ -3,7 +3,7 @@ DB_PORT=3306
 DB_USER=itam
 DB_PASS=itam1234
 DB_NAME=itam
-CLIENT_ID=836cd2e1-995a-4027-bcb5-5dd9c94c2b84
+CLIENT_ID=c89acfda-789b-45fb-bab6-7ebfa4c6a9b4
 ISSUER=https://sso.hmac.kr/oidc
 REDIRECT_URI=http://172.16.9.44:8080/callback
 JWKS_URI=http://172.16.9.44:8080/.well-known/jwks.json
diff --git a/.gitea/workflows/itam_production_deploy.yml b/.gitea/workflows/itam_production_deploy.yml
index aa1fb15..07b6682 100644
--- a/.gitea/workflows/itam_production_deploy.yml
+++ b/.gitea/workflows/itam_production_deploy.yml
@@ -83,8 +83,8 @@ jobs:
           LOG_LEVEL=${EFFECTIVE_LOG_LEVEL}
           CLIENT_ID=${CLIENT_ID}
           ISSUER=${ISSUER}
-          PROD_REDIRECT_URI=${PROD_REDIRECT_URI:-http://172.16.10.175:9090/callback}
-          PROD_JWKS_URI=${PROD_JWKS_URI:-http://172.16.10.175:9090/.well-known/jwks.json}
+          PROD_REDIRECT_URI=${PROD_REDIRECT_URI:-https://dachs.hmac.kr/callback}
+          PROD_JWKS_URI=${PROD_JWKS_URI:-https://dachs.hmac.kr/.well-known/jwks.json}
           EOF
 
       - name: Deploy to production host
diff --git a/docker-compose.prod.yaml b/docker-compose.prod.yaml
index 5c02585..cdf33d1 100644
--- a/docker-compose.prod.yaml
+++ b/docker-compose.prod.yaml
@@ -14,8 +14,8 @@ services:
       NODE_ENV: production
       PORT: 3000
       KEYS_PATH: /app/uploads/keys.json
-      REDIRECT_URI: ${PROD_REDIRECT_URI:-http://172.16.10.175:9090/callback}
-      JWKS_URI: ${PROD_JWKS_URI:-http://172.16.10.175:9090/.well-known/jwks.json}
+      REDIRECT_URI: ${PROD_REDIRECT_URI:-https://dachs.hmac.kr/callback}
+      JWKS_URI: ${PROD_JWKS_URI:-https://dachs.hmac.kr/.well-known/jwks.json}
     volumes:
       - ./uploads:/app/uploads
       - ./map_config.json:/app/map_config.json:ro
diff --git a/server.js b/server.js
index 42f2040..092d051 100644
--- a/server.js
+++ b/server.js
@@ -21,6 +21,7 @@ const {
 const SESSION_SECRET_VALUE = SESSION_SECRET || 'itam-headless-session-secret';
 const DEFAULT_SCOPES = ['openid', 'profile', 'email'];
 const DEFAULT_ERROR_PATH = ERROR_LOCALE_PATH || '/ko/error';
+const USE_SECURE_COOKIES = Boolean(REDIRECT_URI && REDIRECT_URI.startsWith('https://'));
 
 const dbConfig = {
   host: process.env.DB_HOST,
@@ -38,6 +39,9 @@ const getDbConnectionSummary = () => ({
 });
 
 const app = express();
+if (USE_SECURE_COOKIES) {
+  app.set('trust proxy', 1);
+}
 app.use(cors());
 app.use(express.json({ limit: '50mb' }));
 app.use(session({
@@ -47,7 +51,7 @@ app.use(session({
   cookie: {
     httpOnly: true,
     sameSite: 'lax',
-    secure: false,
+    secure: USE_SECURE_COOKIES,
     maxAge: 1000 * 60 * 60 * 8
   }
 }));