diff --git a/worlds/tunic/regions.py b/worlds/tunic/regions.py
index 93ec5640..8f5df889 100644
--- a/worlds/tunic/regions.py
+++ b/worlds/tunic/regions.py
@@ -1,26 +1,24 @@
-from typing import Dict, Set
-
-tunic_regions: Dict[str, Set[str]] = {
-    "Menu": {"Overworld"},
-    "Overworld": {"Overworld Holy Cross", "East Forest", "Dark Tomb", "Beneath the Well", "West Garden",
+tunic_regions: dict[str, tuple[str]] = {
+    "Menu": ("Overworld",),
+    "Overworld": ("Overworld Holy Cross", "East Forest", "Dark Tomb", "Beneath the Well", "West Garden",
                   "Ruined Atoll", "Eastern Vault Fortress", "Beneath the Vault", "Quarry Back", "Quarry", "Swamp",
-                  "Spirit Arena"},
-    "Overworld Holy Cross": set(),
-    "East Forest": set(),
-    "Dark Tomb": {"West Garden"},
-    "Beneath the Well": set(),
-    "West Garden": set(),
-    "Ruined Atoll": {"Frog's Domain", "Library"},
-    "Frog's Domain": set(),
-    "Library": set(),
-    "Eastern Vault Fortress": {"Beneath the Vault"},
-    "Beneath the Vault": {"Eastern Vault Fortress"},
-    "Quarry Back": {"Quarry"},
-    "Quarry": {"Monastery", "Lower Quarry"},
-    "Monastery": set(),
-    "Lower Quarry": {"Rooted Ziggurat"},
-    "Rooted Ziggurat": set(),
-    "Swamp": {"Cathedral"},
-    "Cathedral": set(),
-    "Spirit Arena": set()
+                  "Spirit Arena"),
+    "Overworld Holy Cross": tuple(),
+    "East Forest": tuple(),
+    "Dark Tomb": ("West Garden",),
+    "Beneath the Well": tuple(),
+    "West Garden": tuple(),
+    "Ruined Atoll": ("Frog's Domain", "Library"),
+    "Frog's Domain": tuple(),
+    "Library": tuple(),
+    "Eastern Vault Fortress": ("Beneath the Vault",),
+    "Beneath the Vault": ("Eastern Vault Fortress",),
+    "Quarry Back": ("Quarry",),
+    "Quarry": ("Monastery", "Lower Quarry"),
+    "Monastery": tuple(),
+    "Lower Quarry": ("Rooted Ziggurat",),
+    "Rooted Ziggurat": tuple(),
+    "Swamp": ("Cathedral",),
+    "Cathedral": tuple(),
+    "Spirit Arena": tuple()
 }