diff --git a/pom.xml b/pom.xml
index 1cc216d1f4..ad57504c87 100644
--- a/pom.xml
+++ b/pom.xml
@@ -26,7 +26,7 @@
         <maven.compiler.target>16</maven.compiler.target>
 
         <!-- Spigot properties -->
-        <spigot.version>1.20.4</spigot.version>
+        <spigot.version>1.20.5</spigot.version>
         <spigot.javadocs>https://hub.spigotmc.org/javadocs/spigot/</spigot.javadocs>
 
         <!-- Default settings for sonarcloud.io -->
diff --git a/src/main/java/io/github/thebusybiscuit/slimefun4/implementation/items/electric/machines/AutoBrewer.java b/src/main/java/io/github/thebusybiscuit/slimefun4/implementation/items/electric/machines/AutoBrewer.java
index f00676edd6..66f63bd258 100644
--- a/src/main/java/io/github/thebusybiscuit/slimefun4/implementation/items/electric/machines/AutoBrewer.java
+++ b/src/main/java/io/github/thebusybiscuit/slimefun4/implementation/items/electric/machines/AutoBrewer.java
@@ -11,6 +11,8 @@
 import org.bukkit.inventory.ItemStack;
 import org.bukkit.inventory.meta.PotionMeta;
 import org.bukkit.potion.PotionData;
+import org.bukkit.potion.PotionEffect;
+import org.bukkit.potion.PotionEffectType;
 import org.bukkit.potion.PotionType;
 
 import io.github.bakedlibs.dough.inventory.InvUtils;
@@ -48,10 +50,9 @@ public class AutoBrewer extends AContainer implements NotHopperable {
         potionRecipes.put(Material.TURTLE_HELMET, PotionType.TURTLE_MASTER);
         potionRecipes.put(Material.PHANTOM_MEMBRANE, PotionType.SLOW_FALLING);
 
-        fermentations.put(PotionType.SPEED, PotionType.SLOWNESS);
-        fermentations.put(PotionType.JUMP, PotionType.SLOWNESS);
-        fermentations.put(PotionType.INSTANT_HEAL, PotionType.INSTANT_DAMAGE);
-        fermentations.put(PotionType.POISON, PotionType.INSTANT_DAMAGE);
+        fermentations.put(PotionType.LEAPING, PotionType.SLOWNESS);
+        fermentations.put(PotionType.HEALING, PotionType.HARMING);
+        fermentations.put(PotionType.POISON, PotionType.HARMING);
         fermentations.put(PotionType.NIGHT_VISION, PotionType.INVISIBILITY);
     }
 
@@ -104,15 +105,15 @@ public AutoBrewer(ItemGroup itemGroup, SlimefunItemStack item, RecipeType recipe
 
     @ParametersAreNonnullByDefault
     private @Nullable ItemStack brew(Material input, Material potionType, PotionMeta potion) {
-        PotionData data = potion.getBasePotionData();
+        PotionType data = potion.getBasePotionType();
 
         PotionType type = data.getType();
         if (type == PotionType.WATER) {
             if (input == Material.FERMENTED_SPIDER_EYE) {
-                potion.setBasePotionData(new PotionData(PotionType.WEAKNESS, false, false));
+                potion.setBasePotionType(PotionType.WEAKNESS);
                 return new ItemStack(potionType);
             } else if (input == Material.NETHER_WART) {
-                potion.setBasePotionData(new PotionData(PotionType.AWKWARD, false, false));
+                potion.setBasePotionType(PotionType.AWKWARD);
                 return new ItemStack(potionType);
             } else if (potionType == Material.POTION && input == Material.GUNPOWDER) {
                 return new ItemStack(Material.SPLASH_POTION);
@@ -123,10 +124,10 @@ public AutoBrewer(ItemGroup itemGroup, SlimefunItemStack item, RecipeType recipe
             PotionType fermented = fermentations.get(type);
 
             if (fermented != null) {
-                potion.setBasePotionData(new PotionData(fermented, data.isExtended(), data.isUpgraded()));
+                potion.setBasePotionType(fermented);
                 return new ItemStack(potionType);
             }
-        } else if (input == Material.REDSTONE && type.isExtendable() && !data.isUpgraded()) {
+        } else if (input == Material.REDSTONE && type.isExtendable() && !data) {
             // Fixes #3390 - Potions can only be either extended or upgraded. Not both.
             potion.setBasePotionData(new PotionData(type, true, false));
             return new ItemStack(potionType);
diff --git a/src/main/java/io/github/thebusybiscuit/slimefun4/implementation/setup/SlimefunItemSetup.java b/src/main/java/io/github/thebusybiscuit/slimefun4/implementation/setup/SlimefunItemSetup.java
index 9ade30e843..84cfffff2d 100644
--- a/src/main/java/io/github/thebusybiscuit/slimefun4/implementation/setup/SlimefunItemSetup.java
+++ b/src/main/java/io/github/thebusybiscuit/slimefun4/implementation/setup/SlimefunItemSetup.java
@@ -11,7 +11,6 @@
 import org.bukkit.NamespacedKey;
 import org.bukkit.inventory.ItemStack;
 import org.bukkit.inventory.meta.PotionMeta;
-import org.bukkit.potion.PotionData;
 import org.bukkit.potion.PotionEffect;
 import org.bukkit.potion.PotionEffectType;
 import org.bukkit.potion.PotionType;
@@ -378,7 +377,7 @@ public static void setup(@Nonnull Slimefun plugin) {
 
         new LongFallBoots(itemGroups.magicalArmor, SlimefunItems.SLIME_BOOTS, RecipeType.ARMOR_FORGE,
         new ItemStack[] {null, null, null, new ItemStack(Material.SLIME_BALL), null, new ItemStack(Material.SLIME_BALL), new ItemStack(Material.IRON_INGOT), null, new ItemStack(Material.IRON_INGOT)},
-        new PotionEffect[] {new PotionEffect(PotionEffectType.JUMP, 300, 5)},
+        new PotionEffect[] {new PotionEffect(PotionEffectType.JUMP_BOOST, 300, 5)},
             SoundEffect.SLIME_BOOTS_FALL_SOUND)
         .register(plugin);
 
@@ -839,7 +838,7 @@ public static void setup(@Nonnull Slimefun plugin) {
 
         ItemStack weaknessPotion = new ItemStack(Material.POTION);
         PotionMeta meta = (PotionMeta) weaknessPotion.getItemMeta();
-        meta.setBasePotionData(new PotionData(PotionType.WEAKNESS, false, false));
+        meta.setBasePotionType(PotionType.WEAKNESS);
         weaknessPotion.setItemMeta(meta);
 
         new MagicalZombiePills(itemGroups.magicalGadgets, SlimefunItems.MAGICAL_ZOMBIE_PILLS, RecipeType.MAGIC_WORKBENCH,
@@ -907,7 +906,7 @@ public static void setup(@Nonnull Slimefun plugin) {
 
         new Talisman(SlimefunItems.TALISMAN_WARRIOR,
         new ItemStack[] {SlimefunItems.MAGIC_LUMP_3, null, SlimefunItems.MAGIC_LUMP_3, SlimefunItems.REINFORCED_ALLOY_INGOT, SlimefunItems.COMMON_TALISMAN, SlimefunItems.REINFORCED_ALLOY_INGOT, SlimefunItems.MAGIC_LUMP_3, null, SlimefunItems.MAGIC_LUMP_3},
-        true, true, "warrior", new PotionEffect(PotionEffectType.INCREASE_DAMAGE, 3600, 2))
+        true, true, "warrior", new PotionEffect(PotionEffectType.STRENGTH, 3600, 2))
         .register(plugin);
 
         new Talisman(SlimefunItems.TALISMAN_KNIGHT,
@@ -917,7 +916,7 @@ public static void setup(@Nonnull Slimefun plugin) {
 
         new Talisman(SlimefunItems.TALISMAN_CAVEMAN,
         new ItemStack[] { SlimefunItems.MAGIC_LUMP_3, null, SlimefunItems.MAGIC_LUMP_3, new ItemStack(Material.GOLDEN_PICKAXE), SlimefunItems.TALISMAN_MINER, SlimefunItems.EARTH_RUNE, SlimefunItems.MAGIC_LUMP_3, null, SlimefunItems.MAGIC_LUMP_3},
-        false, false, "caveman", 50, new PotionEffect(PotionEffectType.FAST_DIGGING, 800, 2))
+        false, false, "caveman", 50, new PotionEffect(PotionEffectType.HASTE, 800, 2))
         .register(plugin);
 
         new Talisman(SlimefunItems.TALISMAN_WISE,
@@ -1085,7 +1084,7 @@ public static void setup(@Nonnull Slimefun plugin) {
 
         new LongFallBoots(itemGroups.magicalArmor, SlimefunItems.SLIME_BOOTS_STEEL, RecipeType.ARMOR_FORGE,
         new ItemStack[] {null, null, null, new ItemStack(Material.SLIME_BALL), null, new ItemStack(Material.SLIME_BALL), new ItemStack(Material.SLIME_BALL), SlimefunItems.STEEL_PLATE, new ItemStack(Material.SLIME_BALL)},
-        new PotionEffect[] {new PotionEffect(PotionEffectType.JUMP, 300, 5)},
+        new PotionEffect[] {new PotionEffect(PotionEffectType.JUMP_BOOST, 300, 5)},
         SoundEffect.SLIME_BOOTS_FALL_SOUND)
         .register(plugin);
 
@@ -2646,7 +2645,7 @@ public int getCapacity() {
 
         new LongFallBoots(itemGroups.magicalArmor, SlimefunItems.BEE_BOOTS, RecipeType.ARMOR_FORGE,
         new ItemStack[] {null, null, null, SlimefunItems.GOLD_8K, null, SlimefunItems.GOLD_8K, new ItemStack(Material.HONEY_BLOCK), null, new ItemStack(Material.HONEY_BLOCK)},
-        new PotionEffect[] {new PotionEffect(PotionEffectType.JUMP, 300, 2)},
+        new PotionEffect[] {new PotionEffect(PotionEffectType.JUMP_BOOST, 300, 2)},
         SoundEffect.BEE_BOOTS_FALL_SOUND)
         .register(plugin);
 
diff --git a/src/main/java/io/github/thebusybiscuit/slimefun4/implementation/tasks/ArmorTask.java b/src/main/java/io/github/thebusybiscuit/slimefun4/implementation/tasks/ArmorTask.java
index 32141cb010..1d78469b53 100644
--- a/src/main/java/io/github/thebusybiscuit/slimefun4/implementation/tasks/ArmorTask.java
+++ b/src/main/java/io/github/thebusybiscuit/slimefun4/implementation/tasks/ArmorTask.java
@@ -24,10 +24,8 @@
 import io.github.thebusybiscuit.slimefun4.core.attributes.ProtectionType;
 import io.github.thebusybiscuit.slimefun4.core.attributes.Radioactive;
 import io.github.thebusybiscuit.slimefun4.implementation.Slimefun;
-import io.github.thebusybiscuit.slimefun4.implementation.SlimefunItems;
 import io.github.thebusybiscuit.slimefun4.implementation.items.armor.SlimefunArmorPiece;
 import io.github.thebusybiscuit.slimefun4.implementation.items.electric.gadgets.SolarHelmet;
-import io.github.thebusybiscuit.slimefun4.utils.SlimefunUtils;
 import io.github.thebusybiscuit.slimefun4.utils.itemstack.ItemStackWrapper;
 
 /**
@@ -55,10 +53,10 @@ public ArmorTask(boolean radioactiveFire) {
         Set<PotionEffect> effects = new HashSet<>();
         effects.add(new PotionEffect(PotionEffectType.WITHER, 400, 2));
         effects.add(new PotionEffect(PotionEffectType.BLINDNESS, 400, 3));
-        effects.add(new PotionEffect(PotionEffectType.CONFUSION, 400, 3));
+        effects.add(new PotionEffect(PotionEffectType.NAUSEA, 400, 3));
         effects.add(new PotionEffect(PotionEffectType.WEAKNESS, 400, 2));
-        effects.add(new PotionEffect(PotionEffectType.SLOW, 400, 1));
-        effects.add(new PotionEffect(PotionEffectType.SLOW_DIGGING, 400, 1));
+        effects.add(new PotionEffect(PotionEffectType.SLOWNESS, 400, 1));
+        effects.add(new PotionEffect(PotionEffectType.MINING_FATIGUE, 400, 1));
         radiationEffects = Collections.unmodifiableSet(effects);
     }