diff --git a/docker/docker-entrypoint.sh b/docker/docker-entrypoint.sh
index 1ea34e4..5b1ee6a 100755
--- a/docker/docker-entrypoint.sh
+++ b/docker/docker-entrypoint.sh
@@ -54,25 +54,8 @@ fi
 if [ "$SKIP_SUPERUSER" == "true" ]; then
   echo "↩️ Skip creating the superuser"
 else
-  if [ -z ${SUPERUSER_NAME+x} ]; then
-    SUPERUSER_NAME='admin'
-  fi
-  if [ -z ${SUPERUSER_EMAIL+x} ]; then
-    SUPERUSER_EMAIL='admin@example.com'
-  fi
-  if [ -f "/run/secrets/superuser_password" ]; then
-    SUPERUSER_PASSWORD="$(</run/secrets/superuser_password)"
-  elif [ -z ${SUPERUSER_PASSWORD+x} ]; then
-    SUPERUSER_PASSWORD='admin'
-  fi
-  if [ -f "/run/secrets/superuser_api_token" ]; then
-    SUPERUSER_API_TOKEN="$(</run/secrets/superuser_api_token)"
-  elif [ -z ${SUPERUSER_API_TOKEN+x} ]; then
-    SUPERUSER_API_TOKEN='0123456789abcdef0123456789abcdef01234567'
-  fi
-
-  ./manage.py shell --interface python < /opt/netbox/super_user.py
-
+  ./manage.py shell --no-startup --no-imports --interface python \
+                    < /opt/netbox/super_user.py
 fi
 
 echo "✅ Initialisation is done."
diff --git a/docker/super_user.py b/docker/super_user.py
index 1f8bb16..5213617 100644
--- a/docker/super_user.py
+++ b/docker/super_user.py
@@ -3,10 +3,22 @@ from users.models import Token, User
 from users.choices import TokenVersionChoices
 from django.conf import settings
 
+
+# Read secret from file
+def _read_secret(secret_name: str, default: str | None = None) -> str | None:
+    try:
+        f = open("/run/secrets/" + secret_name, "r", encoding="utf-8")
+    except EnvironmentError:
+        return default
+    else:
+        with f:
+            return f.readline().strip()
+
+
 su_name = environ.get("SUPERUSER_NAME")
 su_email = environ.get("SUPERUSER_EMAIL")
-su_password = environ.get("SUPERUSER_PASSWORD")
-su_api_token = environ.get("SUPERUSER_API_TOKEN")
+su_password = _read_secret("superuser_password", environ.get("SUPERUSER_PASSWORD"))
+su_api_token = _read_secret("superuser_api_token", environ.get("SUPERUSER_API_TOKEN"))
 
 if not User.objects.filter(username=su_name):
     u = User.objects.create_superuser(su_name, su_email, su_password)
@@ -15,8 +27,6 @@ if not User.objects.filter(username=su_name):
         print("⚠️ No API token will be created as API_TOKEN_PEPPERS is not set")
         msg = f"💡 Superuser Username: {su_name}, E-Mail: {su_email}"
     else:
-        t = Token.objects.create(
-            user=u, token=su_api_token, version=TokenVersionChoices.V2
-        )
+        t = Token.objects.create(user=u, token=su_api_token, version=TokenVersionChoices.V2)
         msg = f"💡 Superuser Username: {su_name}, E-Mail: {su_email}, API Token: {t} (use with '{t.get_auth_header_prefix()}<Your token>')"
     print(msg)