diff --git a/src/aiowithings/models.py b/src/aiowithings/models.py
index b261e6c..2a28aff 100644
--- a/src/aiowithings/models.py
+++ b/src/aiowithings/models.py
@@ -283,6 +283,7 @@ class MeasurementType(IntEnum):
     ELECTRODERMAL_ACTIVITY_LEFT_FOOT = 197
     ELECTRODERMAL_ACTIVITY_RIGHT_FOOT = 198
     BASAL_METABOLIC_RATE = 226
+    METABOLIC_AGE = 227
 
 
 class MeasurementPosition(IntEnum):