diff --git a/worlds/subnautica/Items.py b/worlds/subnautica/Items.py
index 9917921a..4201cf39 100644
--- a/worlds/subnautica/Items.py
+++ b/worlds/subnautica/Items.py
@@ -139,7 +139,7 @@ item_table: Dict[int, ItemDict] = {
             'name': 'Power Transmitter Fragment',
             'tech_type': 'PowerTransmitterFragment'},
     35032: {'classification': ItemClassification.progression,
-            'count': 4,
+            'count': 5,
             'name': 'Prawn Suit Fragment',
             'tech_type': 'ExosuitFragment'},
     35033: {'classification': ItemClassification.useful,
@@ -163,7 +163,7 @@ item_table: Dict[int, ItemDict] = {
             'name': 'Scanner Room Fragment',
             'tech_type': 'BaseMapRoomFragment'},
     35038: {'classification': ItemClassification.progression,
-            'count': 5,
+            'count': 4,
             'name': 'Seamoth Fragment',
             'tech_type': 'SeamothFragment'},
     35039: {'classification': ItemClassification.progression,
@@ -203,9 +203,9 @@ item_table: Dict[int, ItemDict] = {
             'name': 'Picture Frame',
             'tech_type': 'PictureFrameFragment'},
     35048: {'classification': ItemClassification.filler,
-            'count': 2,
-            'name': 'Bench Fragment',
-            'tech_type': 'BenchFragment'},
+            'count': 1,
+            'name': 'Bench',
+            'tech_type': 'Bench'},
     35049: {'classification': ItemClassification.filler,
             'count': 1,
             'name': 'Basic Plant Pot',
@@ -333,7 +333,12 @@ item_table: Dict[int, ItemDict] = {
     35080: {'classification': ItemClassification.filler,
             'count': 1,
             'name': 'Water Filtration Machine',
-            'tech_type': 'BaseFiltrationMachine'}}
+            'tech_type': 'BaseFiltrationMachine'},
+    35081: {'classification': ItemClassification.progression,
+            'count': 1,
+            'name': 'Ultra High Capacity Tank',
+            'tech_type': 'HighCapacityTank'},
+}
 
 advancement_item_names: Set[str] = set()
 non_advancement_item_names: Set[str] = set()
diff --git a/worlds/subnautica/__init__.py b/worlds/subnautica/__init__.py
index a4447ccb..7dc23bf4 100644
--- a/worlds/subnautica/__init__.py
+++ b/worlds/subnautica/__init__.py
@@ -41,7 +41,7 @@ class SubnauticaWorld(World):
     location_name_to_id = all_locations
     option_definitions = Options.options
 
-    data_version = 6
+    data_version = 7
     required_client_version = (0, 3, 5)
 
     prefill_items: List[Item]