diff --git a/biomes/tourmaline.json b/biomes/tourmaline.json
index 8ebee15a..0a8cf195 100644
--- a/biomes/tourmaline.json
+++ b/biomes/tourmaline.json
@@ -5,7 +5,7 @@
     "type": "LAND",
     "height": 0,
     "parent": "Mushroom Island",
-    "rarity": 4.5,
+    "rarity": 3.25,
     "surface": [
         "CONCRETE:15",
         "OBSIDIAN",