diff --git a/resources/boundaries/osm/tz.yaml b/resources/boundaries/osm/tz.yaml
index 61b50f8a..7609e173 100644
--- a/resources/boundaries/osm/tz.yaml
+++ b/resources/boundaries/osm/tz.yaml
@@ -4,10 +4,23 @@
         "4": "state"
         "5": "state_district"
         "7": "state_district"
-        "9": "city_district"
+        "9": "city"
 
     overrides:
         id:
-            # Dar es Salaam
-            "1600803": "city"
+            relation:
+                # Dar es Salaam
+                "1600803": "city"
 
+
+        contained_by:
+            relation:   
+                # Dar es Salaam
+                "1600803":
+                    admin_level:
+                        "9": "city_district"
+
+        use_admin_center:
+            - id: 1600803 # Dar es Salaam
+              type: relation
+              probability: 0.9