diff --git a/pyproject.toml b/pyproject.toml
index 5d9d511..30c0c38 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -15,7 +15,7 @@ djangorestframework = "^3.15.2"
 djangorestframework-simplejwt = "^5.3.1"
 gunicorn = "^23.0.0"
 markdown2 = {extras = ["all"], version = "^2.5.1"}
-pillow = "^11.0.0"
+pillow = ">=11,<13"
 psycopg2-binary = "^2.9.10"
 python-dotenv = "^1.0.1"
 django-filter = "^24.3"