diff --git a/common/settings.py b/common/settings.py
index 2a3aaac..440f6fb 100644
--- a/common/settings.py
+++ b/common/settings.py
@@ -59,6 +59,7 @@ DATABASES = {
         'USER': 'claude',
     }
 }
+DEFAULT_AUTO_FIELD = 'django.db.models.AutoField'
 
 AUTH_PASSWORD_VALIDATORS = []
 
diff --git a/requirements.txt b/requirements.txt
index f2ea031..cd113bc 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,4 +1,4 @@
-django<3.2
+django<4.0
 pillow
 psycopg2
-easy-thumbnails==2.7
+easy-thumbnails==2.7.1