diff --git a/biomes/mushroom-crimson-forest.json b/biomes/mushroom-crimson-forest.json
index b38396d5..1ec89c2b 100644
--- a/biomes/mushroom-crimson-forest.json
+++ b/biomes/mushroom-crimson-forest.json
@@ -1,6 +1,6 @@
 {
     "name": "Crimson Mushroom Swamp",
-    "rarity": 22,
+    "rarity": 19,
     "layers": [
         {
             "zoom": 0.5,
diff --git a/biomes/mushroom-warped-forest.json b/biomes/mushroom-warped-forest.json
index 379b9a09..31e80df8 100644
--- a/biomes/mushroom-warped-forest.json
+++ b/biomes/mushroom-warped-forest.json
@@ -1,6 +1,6 @@
 {
     "name": "Corrupted Mushroom Swamp",
-    "rarity": 22,
+    "rarity": 19,
     "layers": [
         {
             "zoom": 0.5,