diff --git a/ihatemoney/models.py b/ihatemoney/models.py
index c7dee185..3272cf41 100644
--- a/ihatemoney/models.py
+++ b/ihatemoney/models.py
@@ -58,7 +58,7 @@ class BillType(Enum):
 
     @classmethod
     def choices(cls):
-        return [(choice, choice.value) for choice in cls]
+        return [(choice.value, choice.value) for choice in cls]
 
 
 db = SQLAlchemy()
diff --git a/pyproject.toml b/pyproject.toml
index cc6199a0..ee8ad57b 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -39,7 +39,7 @@ dependencies = [
     "Flask-SQLAlchemy>=2.4,<3",
     "Flask-Talisman>=0.8,<2",
     "Flask-WTF>=0.14.3,<2",
-    "WTForms>=2.3.1,<3.2",
+    "WTForms>=2.3.3,<3.2",
     "Flask>=2,<3",
     "Werkzeug>=2,<3",
     "itsdangerous>=2,<3",