diff --git a/src/data/bedrock/BiomeIds.php b/src/data/bedrock/BiomeIds.php
index 9513a0dd3..ffb0af8d7 100644
--- a/src/data/bedrock/BiomeIds.php
+++ b/src/data/bedrock/BiomeIds.php
@@ -32,17 +32,83 @@ final class BiomeIds{
 	public const OCEAN = 0;
 	public const PLAINS = 1;
 	public const DESERT = 2;
-	public const MOUNTAINS = 3;
+	public const EXTREME_HILLS = 3;
 	public const FOREST = 4;
 	public const TAIGA = 5;
-	public const SWAMP = 6;
+	public const SWAMPLAND = 6;
 	public const RIVER = 7;
-
 	public const HELL = 8;
-
+	public const THE_END = 9;
+	public const LEGACY_FROZEN_OCEAN = 10;
+	public const FROZEN_RIVER = 11;
 	public const ICE_PLAINS = 12;
-
-	public const SMALL_MOUNTAINS = 20;
-
+	public const ICE_MOUNTAINS = 13;
+	public const MUSHROOM_ISLAND = 14;
+	public const MUSHROOM_ISLAND_SHORE = 15;
+	public const BEACH = 16;
+	public const DESERT_HILLS = 17;
+	public const FOREST_HILLS = 18;
+	public const TAIGA_HILLS = 19;
+	public const EXTREME_HILLS_EDGE = 20;
+	public const JUNGLE = 21;
+	public const JUNGLE_HILLS = 22;
+	public const JUNGLE_EDGE = 23;
+	public const DEEP_OCEAN = 24;
+	public const STONE_BEACH = 25;
+	public const COLD_BEACH = 26;
 	public const BIRCH_FOREST = 27;
+	public const BIRCH_FOREST_HILLS = 28;
+	public const ROOFED_FOREST = 29;
+	public const COLD_TAIGA = 30;
+	public const COLD_TAIGA_HILLS = 31;
+	public const MEGA_TAIGA = 32;
+	public const MEGA_TAIGA_HILLS = 33;
+	public const EXTREME_HILLS_PLUS_TREES = 34;
+	public const SAVANNA = 35;
+	public const SAVANNA_PLATEAU = 36;
+	public const MESA = 37;
+	public const MESA_PLATEAU_STONE = 38;
+	public const MESA_PLATEAU = 39;
+	public const WARM_OCEAN = 40;
+	public const DEEP_WARM_OCEAN = 41;
+	public const LUKEWARM_OCEAN = 42;
+	public const DEEP_LUKEWARM_OCEAN = 43;
+	public const COLD_OCEAN = 44;
+	public const DEEP_COLD_OCEAN = 45;
+	public const FROZEN_OCEAN = 46;
+	public const DEEP_FROZEN_OCEAN = 47;
+	public const BAMBOO_JUNGLE = 48;
+	public const BAMBOO_JUNGLE_HILLS = 49;
+
+	public const SUNFLOWER_PLAINS = 129;
+	public const DESERT_MUTATED = 130;
+	public const EXTREME_HILLS_MUTATED = 131;
+	public const FLOWER_FOREST = 132;
+	public const TAIGA_MUTATED = 133;
+	public const SWAMPLAND_MUTATED = 134;
+
+	public const ICE_PLAINS_SPIKES = 140;
+
+	public const JUNGLE_MUTATED = 149;
+
+	public const JUNGLE_EDGE_MUTATED = 151;
+
+	public const BIRCH_FOREST_MUTATED = 155;
+	public const BIRCH_FOREST_HILLS_MUTATED = 156;
+	public const ROOFED_FOREST_MUTATED = 157;
+	public const COLD_TAIGA_MUTATED = 158;
+
+	public const REDWOOD_TAIGA_MUTATED = 160;
+	public const REDWOOD_TAIGA_HILLS_MUTATED = 161;
+	public const EXTREME_HILLS_PLUS_TREES_MUTATED = 162;
+	public const SAVANNA_MUTATED = 163;
+	public const SAVANNA_PLATEAU_MUTATED = 164;
+	public const MESA_BRYCE = 165;
+	public const MESA_PLATEAU_STONE_MUTATED = 166;
+	public const MESA_PLATEAU_MUTATED = 167;
+
+	public const SOULSAND_VALLEY = 178;
+	public const CRIMSON_FOREST = 179;
+	public const WARPED_FOREST = 180;
+	public const BASALT_DELTAS = 181;
 }
diff --git a/src/world/biome/BiomeRegistry.php b/src/world/biome/BiomeRegistry.php
index 803d1b1c3..9e7f3077b 100644
--- a/src/world/biome/BiomeRegistry.php
+++ b/src/world/biome/BiomeRegistry.php
@@ -42,17 +42,17 @@ final class BiomeRegistry{
 		$this->register(BiomeIds::OCEAN, new OceanBiome());
 		$this->register(BiomeIds::PLAINS, new PlainBiome());
 		$this->register(BiomeIds::DESERT, new DesertBiome());
-		$this->register(BiomeIds::MOUNTAINS, new MountainsBiome());
+		$this->register(BiomeIds::EXTREME_HILLS, new MountainsBiome());
 		$this->register(BiomeIds::FOREST, new ForestBiome());
 		$this->register(BiomeIds::TAIGA, new TaigaBiome());
-		$this->register(BiomeIds::SWAMP, new SwampBiome());
+		$this->register(BiomeIds::SWAMPLAND, new SwampBiome());
 		$this->register(BiomeIds::RIVER, new RiverBiome());
 
 		$this->register(BiomeIds::HELL, new HellBiome());
 
 		$this->register(BiomeIds::ICE_PLAINS, new IcePlainsBiome());
 
-		$this->register(BiomeIds::SMALL_MOUNTAINS, new SmallMountainsBiome());
+		$this->register(BiomeIds::EXTREME_HILLS_EDGE, new SmallMountainsBiome());
 
 		$this->register(BiomeIds::BIRCH_FOREST, new ForestBiome(TreeType::BIRCH()));
 	}
diff --git a/src/world/generator/normal/Normal.php b/src/world/generator/normal/Normal.php
index be7de0765..9ee042682 100644
--- a/src/world/generator/normal/Normal.php
+++ b/src/world/generator/normal/Normal.php
@@ -76,7 +76,7 @@ class Normal extends Generator{
 					}elseif($temperature < 0.85){
 						return BiomeIds::RIVER;
 					}else{
-						return BiomeIds::SWAMP;
+						return BiomeIds::SWAMPLAND;
 					}
 				}elseif($rainfall < 0.60){
 					if($temperature < 0.25){
@@ -96,9 +96,9 @@ class Normal extends Generator{
 					}
 				}else{
 					if($temperature < 0.20){
-						return BiomeIds::MOUNTAINS;
+						return BiomeIds::EXTREME_HILLS;
 					}elseif($temperature < 0.40){
-						return BiomeIds::SMALL_MOUNTAINS;
+						return BiomeIds::EXTREME_HILLS_EDGE;
 					}else{
 						return BiomeIds::RIVER;
 					}