diff --git a/src/battle-scene.ts b/src/battle-scene.ts
index 6cc33dc476d..7f9309c8e79 100644
--- a/src/battle-scene.ts
+++ b/src/battle-scene.ts
@@ -1865,7 +1865,7 @@ export default class BattleScene extends SceneBase {
 
   generateRandomBiome(waveIndex: integer): Biome {
     const relWave = waveIndex % 250;
-    const biomes = Utils.getEnumValues(Biome).slice(1, Utils.getEnumValues(Biome).filter(b => b >= 40).length * -1);
+    const biomes = Utils.getEnumValues(Biome).slice(1, Utils.getEnumValues(Biome).filter(b => b >= 50).length * -1);
     const maxDepth = biomeDepths[Biome.END][0] - 2;
     const depthWeights = new Array(maxDepth + 1).fill(null)
       .map((_, i: integer) => ((1 - Math.min(Math.abs((i / (maxDepth - 1)) - (relWave / 250)) + 0.25, 1)) / 0.75) * 250);