diff --git a/regions/mountain.json b/regions/mountain.json
index c33d3d83..c204a715 100644
--- a/regions/mountain.json
+++ b/regions/mountain.json
@@ -24,7 +24,7 @@
         },
         {
             "structure": "mineshaft",
-            "rarity": 750
+            "rarity": 1250
         }
     ],
     "biomeImplosionRatio": 0.25,