diff --git a/plugins/realisticbiomes-paper/build.gradle.kts b/plugins/realisticbiomes-paper/build.gradle.kts
index bd900a81b..6c9885282 100644
--- a/plugins/realisticbiomes-paper/build.gradle.kts
+++ b/plugins/realisticbiomes-paper/build.gradle.kts
@@ -6,7 +6,9 @@ plugins {
 version = "3.2.3"
 
 dependencies {
-	paperDevBundle("1.18.2-R0.1-SNAPSHOT")
+	paperweight {
+		paperDevBundle("1.20.4-R0.1-SNAPSHOT")
+	}
 
 	compileOnly(project(":plugins:civmodcore-paper"))
 	compileOnly("com.sk89q.worldedit:worldedit-bukkit:7.2.8")
diff --git a/plugins/realisticbiomes-paper/src/main/java/com/untamedears/realisticbiomes/growth/FungusGrower.java b/plugins/realisticbiomes-paper/src/main/java/com/untamedears/realisticbiomes/growth/FungusGrower.java
index edf132ba2..5b17019ea 100644
--- a/plugins/realisticbiomes-paper/src/main/java/com/untamedears/realisticbiomes/growth/FungusGrower.java
+++ b/plugins/realisticbiomes-paper/src/main/java/com/untamedears/realisticbiomes/growth/FungusGrower.java
@@ -3,12 +3,18 @@ package com.untamedears.realisticbiomes.growth;
 import com.untamedears.realisticbiomes.model.Plant;
 import java.util.Random;
 import net.minecraft.core.BlockPos;
+import net.minecraft.core.Holder;
+import net.minecraft.core.registries.Registries;
 import net.minecraft.data.worldgen.features.TreeFeatures;
+import net.minecraft.resources.ResourceKey;
 import net.minecraft.server.level.ServerLevel;
+import net.minecraft.util.RandomSource;
+import net.minecraft.world.level.levelgen.feature.ConfiguredFeature;
 import org.bukkit.Material;
 import org.bukkit.TreeType;
 import org.bukkit.block.Block;
-import org.bukkit.craftbukkit.v1_18_R2.CraftWorld;
+import org.bukkit.craftbukkit.v1_20_R3.CraftWorld;
+import org.bukkit.craftbukkit.v1_20_R3.util.RandomSourceWrapper;
 
 /**
  * We need to differentiate fungus from other types of saplings thanks
@@ -20,7 +26,7 @@ import org.bukkit.craftbukkit.v1_18_R2.CraftWorld;
  */
 public class FungusGrower extends AgeableGrower {
 
-	private final Random random = new Random();
+	private final RandomSource randomSource = new RandomSourceWrapper(new Random());
 
 	public FungusGrower(final Material material) {
 		super(material, 1, 1);
@@ -42,18 +48,22 @@ public class FungusGrower extends AgeableGrower {
 		}
 		final Block block = plant.getLocation().getBlock();
 		final Material material = block.getType();
-		final var growth =
+		final ResourceKey<ConfiguredFeature<?, ?>> growth =
 				material == Material.CRIMSON_FUNGUS ? TreeFeatures.CRIMSON_FUNGUS :
-				material == Material.WARPED_FUNGUS ? TreeFeatures.WARPED_FUNGUS :
-				material == Material.FLOWERING_AZALEA ? TreeFeatures.AZALEA_TREE :
-				null;
+						material == Material.WARPED_FUNGUS ? TreeFeatures.WARPED_FUNGUS :
+								material == Material.FLOWERING_AZALEA ? TreeFeatures.AZALEA_TREE :
+										null;
 		if (growth == null) {
 			return true;
 		}
 		final ServerLevel world = ((CraftWorld) block.getWorld()).getHandle();
 		final BlockPos position = new BlockPos(block.getX(), block.getY(), block.getZ());
 		//Taken from CraftWorld.generateTree()
-		if (!growth.value().place(world, world.getChunkSource().getGenerator(), this.random, position)) {
+		Holder<ConfiguredFeature<?, ?>> growthHolder = world.registryAccess().registryOrThrow(Registries.CONFIGURED_FEATURE).getHolder(growth).orElse(null);
+
+		if (growthHolder == null) return false;
+
+		if (!growthHolder.value().place(world, world.getChunkSource().getGenerator(), this.randomSource, position)) {
 			block.setType(material);
 		}
 		return true;
diff --git a/plugins/realisticbiomes-paper/src/main/java/com/untamedears/realisticbiomes/utils/RBUtils.java b/plugins/realisticbiomes-paper/src/main/java/com/untamedears/realisticbiomes/utils/RBUtils.java
index 0e1208fda..59014a975 100644
--- a/plugins/realisticbiomes-paper/src/main/java/com/untamedears/realisticbiomes/utils/RBUtils.java
+++ b/plugins/realisticbiomes-paper/src/main/java/com/untamedears/realisticbiomes/utils/RBUtils.java
@@ -34,24 +34,28 @@ public class RBUtils {
 
 	public static TreeType getTreeType(Block block) {
 		switch (block.getType()) {
-		case ACACIA_SAPLING:
-			return TreeType.ACACIA;
-		case BIRCH_SAPLING:
-			return TreeType.BIRCH;
-		case OAK_SAPLING:
-			return TreeType.TREE;
-		case JUNGLE_SAPLING:
-			return TreeType.JUNGLE;
-		case DARK_OAK_SAPLING:
-			return TreeType.DARK_OAK;
-		case SPRUCE_SAPLING:
-			return TreeType.REDWOOD;
-		case CRIMSON_FUNGUS:
-			return TreeType.CRIMSON_FUNGUS;
-		case WARPED_FUNGUS:
-			return TreeType.WARPED_FUNGUS;
+			case ACACIA_SAPLING:
+				return TreeType.ACACIA;
+			case BIRCH_SAPLING:
+				return TreeType.BIRCH;
+			case OAK_SAPLING:
+				return TreeType.TREE;
+			case JUNGLE_SAPLING:
+				return TreeType.JUNGLE;
+			case DARK_OAK_SAPLING:
+				return TreeType.DARK_OAK;
+			case SPRUCE_SAPLING:
+				return TreeType.REDWOOD;
+			case CRIMSON_FUNGUS:
+				return TreeType.CRIMSON_FUNGUS;
+			case WARPED_FUNGUS:
+				return TreeType.WARPED_FUNGUS;
 			case FLOWERING_AZALEA:
-			return TreeType.AZALEA;
+				return TreeType.AZALEA;
+			case MANGROVE_PROPAGULE:
+				return TreeType.MANGROVE;
+			case CHERRY_SAPLING:
+				return TreeType.CHERRY;
 		default:
 			throw new IllegalArgumentException();
 		}
@@ -123,7 +127,8 @@ public class RBUtils {
 				|| material == Material.DARK_OAK_SAPLING || material == Material.JUNGLE_SAPLING
 				|| material == Material.OAK_SAPLING || material == Material.SPRUCE_SAPLING
 				|| material == Material.CRIMSON_FUNGUS || material == Material.WARPED_FUNGUS
-				|| material == Material.FLOWERING_AZALEA;
+				|| material == Material.FLOWERING_AZALEA || material == Material.MANGROVE_PROPAGULE
+				|| material == Material.CHERRY_SAPLING;
 	}
 
 	public static boolean isStem(Material mat) {
diff --git a/plugins/realisticbiomes-paper/src/main/resources/plugin.yml b/plugins/realisticbiomes-paper/src/main/resources/plugin.yml
index 4db6382da..45f9a34f7 100644
--- a/plugins/realisticbiomes-paper/src/main/resources/plugin.yml
+++ b/plugins/realisticbiomes-paper/src/main/resources/plugin.yml
@@ -15,7 +15,7 @@ authors:
 - pruby
 - Maxopoly
 - BlackXnt
-api-version: 1.18
+api-version: 1.20
 description: RealisticBiomes makes farming harder by limiting growth rates of crops and making them only grow well in certain biomes.
 permissions:
   rb.public: