diff --git a/env.example b/env.example
index 532dd9216a186fda0f6216257e75b208018ce3f9..2c2f3f588841e9df95d7b641ec629fd8e6116872 100644
--- a/env.example
+++ b/env.example
@@ -1 +1 @@
-DATABASE_URL="postgresql://nastenka:nastenka@localhost:5432/postgres"
+DATABASE_URL="postgresql://institut:institut@localhost:5432/postgres"
diff --git a/institut/settings/base.py b/institut/settings/base.py
index b1348b31e79ccd990f99f445976b262eea2c11bc..fb98f3b7f6525577b96551fb6f93c78391d2bae8 100644
--- a/institut/settings/base.py
+++ b/institut/settings/base.py
@@ -94,6 +94,8 @@ DATABASES = {
     "default": dj_database_url.config(conn_max_age=600, conn_health_checks=True)
 }
 
+DEFAULT_AUTO_FIELD = "django.db.models.BigAutoField"
+
 
 # Password validation
 # https://docs.djangoproject.com/en/4.2/ref/settings/#auth-password-validators