diff --git a/regions/mosaic.json b/regions/mosaic.json
index 93c7b0fe..645ff5a0 100644
--- a/regions/mosaic.json
+++ b/regions/mosaic.json
@@ -3,7 +3,7 @@
         {
             "tileset": "ruins",
             "zoom": 1,
-            "rarity": 600
+            "rarity": 400
         }
     ],
     "landBiomes": [