diff --git a/dimensions/overworld.json b/dimensions/overworld.json
index 751bb703..9d04d656 100644
--- a/dimensions/overworld.json
+++ b/dimensions/overworld.json
@@ -294,8 +294,8 @@
         },
         {
             "minHeight": 2,
-            "maxPerChunk": 2,
-            "maxHeight": 18,
+            "maxPerChunk": 3,
+            "maxHeight": 15,
             "minPerChunk": 1,
             "minSize": 2,
             "maxSize": 5,
@@ -304,14 +304,14 @@
                     "block": "diamond_ore"
                 }
             ],
-            "varience": 4
+            "varience": 5
         },
         {
-            "minHeight": 4,
+            "minHeight": 2,
             "maxPerChunk": 5,
             "maxHeight": 40,
             "minPerChunk": 1,
-            "minSize": 5,
+            "minSize": 6,
             "maxSize": 8,
             "palette": [
                 {
@@ -324,12 +324,12 @@
             "varience": 7
         },
         {
-            "minHeight": 3,
-            "maxPerChunk": 2,
+            "minHeight": 2,
+            "maxPerChunk": 3,
             "maxHeight": 67,
             "minPerChunk": 1,
-            "minSize": 1,
-            "maxSize": 3,
+            "minSize": 2,
+            "maxSize": 4,
             "palette": [
                 {
                     "block": "gold_ore"
@@ -339,7 +339,7 @@
         },
         {
             "minHeight": 3,
-            "maxPerChunk": 1,
+            "maxPerChunk": 3,
             "maxHeight": 29,
             "minPerChunk": 0,
             "minSize": 3,