diff --git a/backend/pyproject.toml b/backend/pyproject.toml
index b247f1f..f76d500 100644
--- a/backend/pyproject.toml
+++ b/backend/pyproject.toml
@@ -26,7 +26,7 @@ dependencies = [
   "qrcode[pil]>=7.4,<9.0",
   "Pillow>=12.2,<13.0",
   "pytesseract>=0.3.10,<1.0",
-  "python-ulid>=2.2,<4.0",
+  "python-ulid>=2.2,<5.0",
   "itsdangerous>=2.1,<3.0",
   "jinja2>=3.1,<4.0",
 ]