diff --git a/social_network/social_network/settings.py b/social_network/social_network/settings.py
index 9f54f2e3b0a0b1f6e912bfd52da888b385e3333d..277489152eed975d7e354ea15db876e81151a200 100644
--- a/social_network/social_network/settings.py
+++ b/social_network/social_network/settings.py
@@ -133,3 +133,8 @@ REST_FRAMEWORK = {
 # Folder to store media data
 MEDIA_URL = '/media/'
 MEDIA_ROOT = os.path.join(BASE_DIR, 'media')
+
+# Default primary key field type
+# https://docs.djangoproject.com/en/3.2/ref/settings/#default-auto-field
+
+DEFAULT_AUTO_FIELD = 'django.db.models.BigAutoField'