diff --git a/oj/dev_settings.py b/oj/dev_settings.py
index 473f8b5..8ba9601 100644
--- a/oj/dev_settings.py
+++ b/oj/dev_settings.py
@@ -8,7 +8,7 @@ DATABASES = {
     "default": {
         "ENGINE": "django.db.backends.postgresql",
         "HOST": "10.13.114.114",
-        "PORT": "5432",
+        "PORT": "5433",
         "NAME": "onlinejudge",
         "USER": "onlinejudge",
         "PASSWORD": "onlinejudge",