diff --git a/features/attributes/backend-api/src/migrations/039_seed_enum_value_types.sql b/features/attributes/backend-api/src/migrations/039_seed_enum_value_types.sql
new file mode 100644
index 000000000..d1c207949
--- /dev/null
+++ b/features/attributes/backend-api/src/migrations/039_seed_enum_value_types.sql
@@ -0,0 +1,40 @@
+-- Seed enumValueType and enumValueConfig on existing attributes
+-- ISO country pickers
+UPDATE attribute_definitions SET "enumValueType" = 'iso-country' WHERE code IN ('country', 'countries_visited', 'nationality', 'bucket_list_travel');
+
+-- ISO language pickers
+UPDATE attribute_definitions SET "enumValueType" = 'iso-language' WHERE code IN ('cultural_languages_spoken', 'cultural_languages_learning', 'language_learning');
+
+-- Currency picker
+UPDATE attribute_definitions SET "enumValueType" = 'currency' WHERE code = 'currency_accepted';
+
+-- Stepper for size enums (whole numbers or half-sizes)
+UPDATE attribute_definitions
+  SET "enumValueType" = 'stepper',
+      "enumValueConfig" = '{"step": 0.5, "min": 4, "max": 16}'::jsonb
+  WHERE code = 'shoe_size';
+
+UPDATE attribute_definitions
+  SET "enumValueType" = 'stepper',
+      "enumValueConfig" = '{"step": 2, "min": 0, "max": 30}'::jsonb
+  WHERE code = 'dress_size';
+
+UPDATE attribute_definitions
+  SET "enumValueType" = 'stepper',
+      "enumValueConfig" = '{"step": 1, "min": 20, "max": 60}'::jsonb
+  WHERE code = 'waist_size';
+
+UPDATE attribute_definitions
+  SET "enumValueType" = 'stepper',
+      "enumValueConfig" = '{"step": 1, "min": 28, "max": 60}'::jsonb
+  WHERE code = 'hip_size';
+
+UPDATE attribute_definitions
+  SET "enumValueType" = 'stepper',
+      "enumValueConfig" = '{"step": 1, "min": 28, "max": 50}'::jsonb
+  WHERE code = 'bust_size';
+
+UPDATE attribute_definitions
+  SET "enumValueType" = 'stepper',
+      "enumValueConfig" = '{"step": 1, "min": 0, "max": 12}'::jsonb
+  WHERE code = 'cup_size';