diff --git a/CHANGES.md b/CHANGES.md
index d3005c8..440df64 100644
--- a/CHANGES.md
+++ b/CHANGES.md
@@ -1,5 +1,9 @@
 # Change log
 
+## Unreleased
+- Avoid errors when a new maturity is added
+- Ungrade somenergia-ui to 0.5.1 that fixes curve labels
+
 ## 1.2.0 (2024-11-13)
 - Add HD maturity
 
diff --git a/backend/datasources/dummy.py b/backend/datasources/dummy.py
index 9fe38e8..02912e9 100644
--- a/backend/datasources/dummy.py
+++ b/backend/datasources/dummy.py
@@ -373,7 +373,7 @@ def dummy_production_data(
     nhours = round(
         (last_timestamp_utc - first_timestamp_utc) / datetime.timedelta(hours=1)
     )
-    maturity_options = ["H2", "H3", "HP", "HC", None]
+    maturity_options = ["H2", "H3", "HP", "HC", "HD", None]
 
     return CustomerProductionData(
         data=[
diff --git a/backend/models.py b/backend/models.py
index 6e7e28b..daeda2e 100644
--- a/backend/models.py
+++ b/backend/models.py
@@ -165,14 +165,6 @@ class ProductionData(BaseModel):
     data: str
     value: int
 
-DataMaturity = Literal[
-    'H2',
-    'H3',
-    'HP',
-    'HC',
-    'HD',
-]
-
 class ContractProductionData(BaseModel):
     contract_name: str
     first_timestamp_utc: AwareDatetime
@@ -180,7 +172,7 @@ class ContractProductionData(BaseModel):
     foreseen_kwh: list[float | None]
     measure_kwh: list[float | None]
     estimated: list [bool | None]
-    maturity: list[DataMaturity | None]
+    maturity: list[str | None]
 
 class CustomerProductionData(BaseModel):
     data: list[ContractProductionData]
diff --git a/package.json b/package.json
index e1adda9..fdb448c 100644
--- a/package.json
+++ b/package.json
@@ -22,7 +22,7 @@
     "@mui/material": "^5.14.6",
     "@mui/x-date-pickers": "^6.19.3",
     "@prettier/plugin-xml": "^3.2.2",
-    "@somenergia/somenergia-ui": "^0.3.0",
+    "@somenergia/somenergia-ui": "^0.5.1",
     "axios": "^1.5.1",
     "dayjs": "^1.11.10",
     "i18next": "^23.4.5",