diff --git a/django_lostplaces/lostplaces/__init__.py b/django_lostplaces/lostplaces/__init__.py
index 720990e..4d5db56 100644
--- a/django_lostplaces/lostplaces/__init__.py
+++ b/django_lostplaces/lostplaces/__init__.py
@@ -4,8 +4,8 @@ from django.conf import settings
 
 settings.THUMBNAIL_ALIASES = {
     '': {
-        'thumbnail': {'size': (300, 200), 'crop': True},
-        'hero': {'size': (700, 466), 'crop': True},
-        'large': {'size': (1920, 1920), 'crop': False},
+        'thumbnail': {'size': (300, 200), 'sharpen': True, 'crop': True},
+        'hero': {'size': (700, 466), 'sharpen': True, 'crop': True},
+        'large': {'size': (1920, 1920), 'sharpen': True, 'crop': False},
     },
 }
\ No newline at end of file