diff --git a/eco-core/core-nms/v1_16_R3/build.gradle b/eco-core/core-nms/v1_16_R3/build.gradle
deleted file mode 100644
index 5930f17d..00000000
--- a/eco-core/core-nms/v1_16_R3/build.gradle
+++ /dev/null
@@ -1,6 +0,0 @@
-group 'com.willfp'
-version rootProject.version
-
-dependencies {
-    compileOnly 'org.spigotmc:spigot:1.16.4-R0.1-SNAPSHOT'
-}
\ No newline at end of file
diff --git a/eco-core/core-nms/v1_16_R3/src/main/java/com/willfp/ecoenchants/proxy/v1_16_R3/EcoCraftEnchantmentManager.java b/eco-core/core-nms/v1_16_R3/src/main/java/com/willfp/ecoenchants/proxy/v1_16_R3/EcoCraftEnchantmentManager.java
deleted file mode 100644
index b44e93fe..00000000
--- a/eco-core/core-nms/v1_16_R3/src/main/java/com/willfp/ecoenchants/proxy/v1_16_R3/EcoCraftEnchantmentManager.java
+++ /dev/null
@@ -1,25 +0,0 @@
-package com.willfp.ecoenchants.proxy.v1_16_R3;
-
-import com.willfp.ecoenchants.enchantments.support.vanilla.VanillaEnchantmentMetadata;
-import com.willfp.ecoenchants.enchantments.support.vanilla.VanillaEnchantments;
-import com.willfp.ecoenchants.proxy.proxies.EcoCraftEnchantmentManagerProxy;
-import com.willfp.ecoenchants.proxy.v1_16_R3.enchants.EcoCraftEnchantment;
-import net.minecraft.server.v1_16_R3.Enchantment;
-import net.minecraft.server.v1_16_R3.IRegistry;
-import org.bukkit.NamespacedKey;
-import org.bukkit.craftbukkit.v1_16_R3.util.CraftNamespacedKey;
-
-import java.util.Map;
-
-public final class EcoCraftEnchantmentManager implements EcoCraftEnchantmentManagerProxy {
-    @Override
-    public void registerNewCraftEnchantments() {
-        Map<org.bukkit.enchantments.Enchantment, VanillaEnchantmentMetadata> metadataMap = VanillaEnchantments.getMetadataMap();
-
-        for (Enchantment enchantment : IRegistry.ENCHANTMENT) {
-            NamespacedKey key = CraftNamespacedKey.fromMinecraft(IRegistry.ENCHANTMENT.getKey(enchantment));
-            VanillaEnchantmentMetadata metadata = metadataMap.get(org.bukkit.enchantments.Enchantment.getByKey(key));
-            new EcoCraftEnchantment(enchantment, metadata).register();
-        }
-    }
-}
diff --git a/eco-core/core-nms/v1_16_R3/src/main/java/com/willfp/ecoenchants/proxy/v1_16_R3/OpenInventory.java b/eco-core/core-nms/v1_16_R3/src/main/java/com/willfp/ecoenchants/proxy/v1_16_R3/OpenInventory.java
deleted file mode 100644
index c6549c6b..00000000
--- a/eco-core/core-nms/v1_16_R3/src/main/java/com/willfp/ecoenchants/proxy/v1_16_R3/OpenInventory.java
+++ /dev/null
@@ -1,13 +0,0 @@
-package com.willfp.ecoenchants.proxy.v1_16_R3;
-
-import com.willfp.ecoenchants.proxy.proxies.OpenInventoryProxy;
-import org.bukkit.craftbukkit.v1_16_R3.entity.CraftPlayer;
-import org.bukkit.entity.Player;
-import org.jetbrains.annotations.NotNull;
-
-public final class OpenInventory implements OpenInventoryProxy {
-    @Override
-    public Object getOpenInventory(@NotNull final Player player) {
-        return ((CraftPlayer) player).getHandle().activeContainer;
-    }
-}
diff --git a/eco-core/core-nms/v1_16_R3/src/main/java/com/willfp/ecoenchants/proxy/v1_16_R3/enchants/EcoCraftEnchantment.java b/eco-core/core-nms/v1_16_R3/src/main/java/com/willfp/ecoenchants/proxy/v1_16_R3/enchants/EcoCraftEnchantment.java
deleted file mode 100644
index 6b5a508e..00000000
--- a/eco-core/core-nms/v1_16_R3/src/main/java/com/willfp/ecoenchants/proxy/v1_16_R3/enchants/EcoCraftEnchantment.java
+++ /dev/null
@@ -1,36 +0,0 @@
-package com.willfp.ecoenchants.proxy.v1_16_R3.enchants;
-
-import com.willfp.ecoenchants.enchantments.EcoEnchant;
-import com.willfp.ecoenchants.enchantments.support.vanilla.VanillaEnchantmentMetadata;
-import com.willfp.ecoenchants.enchantments.util.EnchantmentUtils;
-import net.minecraft.server.v1_16_R3.Enchantment;
-import org.bukkit.craftbukkit.v1_16_R3.enchantments.CraftEnchantment;
-import org.jetbrains.annotations.NotNull;
-
-public class EcoCraftEnchantment extends CraftEnchantment {
-    private final VanillaEnchantmentMetadata metadata;
-
-    public EcoCraftEnchantment(@NotNull final Enchantment target,
-                               @NotNull final VanillaEnchantmentMetadata metadata) {
-        super(target);
-        this.metadata = metadata;
-    }
-
-    @Override
-    public int getMaxLevel() {
-        return metadata.maxLevel() == null ? this.getHandle().getMaxLevel() : metadata.maxLevel();
-    }
-
-    @Override
-    public boolean conflictsWith(@NotNull final org.bukkit.enchantments.Enchantment other) {
-        if (other instanceof EcoEnchant) {
-            return other.conflictsWith(this);
-        }
-
-        return metadata.conflicts() == null ? super.conflictsWith(other) : metadata.conflicts().contains(other.getKey());
-    }
-
-    public void register() {
-        EnchantmentUtils.register(this);
-    }
-}
diff --git a/eco-core/core-plugin/src/main/java/com/willfp/ecoenchants/enchantments/ecoenchants/artifact/CopperArtifact.java b/eco-core/core-plugin/src/main/java/com/willfp/ecoenchants/enchantments/ecoenchants/artifact/CopperArtifact.java
index 389df4b0..ca4e83c8 100644
--- a/eco-core/core-plugin/src/main/java/com/willfp/ecoenchants/enchantments/ecoenchants/artifact/CopperArtifact.java
+++ b/eco-core/core-plugin/src/main/java/com/willfp/ecoenchants/enchantments/ecoenchants/artifact/CopperArtifact.java
@@ -1,6 +1,5 @@
 package com.willfp.ecoenchants.enchantments.ecoenchants.artifact;
 
-import com.willfp.eco.core.Prerequisite;
 import com.willfp.ecoenchants.enchantments.itemtypes.Artifact;
 import org.bukkit.Particle;
 import org.jetbrains.annotations.NotNull;
@@ -8,8 +7,7 @@ import org.jetbrains.annotations.NotNull;
 public class CopperArtifact extends Artifact {
     public CopperArtifact() {
         super(
-                "copper_artifact",
-                Prerequisite.HAS_1_17
+                "copper_artifact"
         );
     }
 
diff --git a/eco-core/core-plugin/src/main/java/com/willfp/ecoenchants/enchantments/ecoenchants/artifact/GlowArtifact.java b/eco-core/core-plugin/src/main/java/com/willfp/ecoenchants/enchantments/ecoenchants/artifact/GlowArtifact.java
index da364b2b..ac682227 100644
--- a/eco-core/core-plugin/src/main/java/com/willfp/ecoenchants/enchantments/ecoenchants/artifact/GlowArtifact.java
+++ b/eco-core/core-plugin/src/main/java/com/willfp/ecoenchants/enchantments/ecoenchants/artifact/GlowArtifact.java
@@ -1,6 +1,5 @@
 package com.willfp.ecoenchants.enchantments.ecoenchants.artifact;
 
-import com.willfp.eco.core.Prerequisite;
 import com.willfp.ecoenchants.enchantments.itemtypes.Artifact;
 import org.bukkit.Particle;
 import org.jetbrains.annotations.NotNull;
@@ -8,8 +7,7 @@ import org.jetbrains.annotations.NotNull;
 public class GlowArtifact extends Artifact {
     public GlowArtifact() {
         super(
-                "glow_artifact",
-                Prerequisite.HAS_1_17
+                "glow_artifact"
         );
     }
 
diff --git a/eco-core/core-plugin/src/main/java/com/willfp/ecoenchants/enchantments/ecoenchants/artifact/SparkArtifact.java b/eco-core/core-plugin/src/main/java/com/willfp/ecoenchants/enchantments/ecoenchants/artifact/SparkArtifact.java
index c3d67527..824f08c5 100644
--- a/eco-core/core-plugin/src/main/java/com/willfp/ecoenchants/enchantments/ecoenchants/artifact/SparkArtifact.java
+++ b/eco-core/core-plugin/src/main/java/com/willfp/ecoenchants/enchantments/ecoenchants/artifact/SparkArtifact.java
@@ -1,6 +1,5 @@
 package com.willfp.ecoenchants.enchantments.ecoenchants.artifact;
 
-import com.willfp.eco.core.Prerequisite;
 import com.willfp.ecoenchants.enchantments.itemtypes.Artifact;
 import org.bukkit.Particle;
 import org.jetbrains.annotations.NotNull;
@@ -8,8 +7,7 @@ import org.jetbrains.annotations.NotNull;
 public class SparkArtifact extends Artifact {
     public SparkArtifact() {
         super(
-                "spark_artifact",
-                Prerequisite.HAS_1_17
+                "spark_artifact"
         );
     }
 
diff --git a/eco-core/core-plugin/src/main/java/com/willfp/ecoenchants/enchantments/ecoenchants/artifact/SporeArtifact.java b/eco-core/core-plugin/src/main/java/com/willfp/ecoenchants/enchantments/ecoenchants/artifact/SporeArtifact.java
index 218c6dff..529e2d2d 100644
--- a/eco-core/core-plugin/src/main/java/com/willfp/ecoenchants/enchantments/ecoenchants/artifact/SporeArtifact.java
+++ b/eco-core/core-plugin/src/main/java/com/willfp/ecoenchants/enchantments/ecoenchants/artifact/SporeArtifact.java
@@ -1,6 +1,5 @@
 package com.willfp.ecoenchants.enchantments.ecoenchants.artifact;
 
-import com.willfp.eco.core.Prerequisite;
 import com.willfp.ecoenchants.enchantments.itemtypes.Artifact;
 import org.bukkit.Particle;
 import org.jetbrains.annotations.NotNull;
@@ -8,8 +7,7 @@ import org.jetbrains.annotations.NotNull;
 public class SporeArtifact extends Artifact {
     public SporeArtifact() {
         super(
-                "spore_artifact",
-                Prerequisite.HAS_1_17
+                "spore_artifact"
         );
     }
 
diff --git a/eco-core/core-plugin/src/main/java/com/willfp/ecoenchants/enchantments/ecoenchants/artifact/WaxArtifact.java b/eco-core/core-plugin/src/main/java/com/willfp/ecoenchants/enchantments/ecoenchants/artifact/WaxArtifact.java
index 81bc657b..b7f59f83 100644
--- a/eco-core/core-plugin/src/main/java/com/willfp/ecoenchants/enchantments/ecoenchants/artifact/WaxArtifact.java
+++ b/eco-core/core-plugin/src/main/java/com/willfp/ecoenchants/enchantments/ecoenchants/artifact/WaxArtifact.java
@@ -1,6 +1,5 @@
 package com.willfp.ecoenchants.enchantments.ecoenchants.artifact;
 
-import com.willfp.eco.core.Prerequisite;
 import com.willfp.ecoenchants.enchantments.itemtypes.Artifact;
 import org.bukkit.Particle;
 import org.jetbrains.annotations.NotNull;
@@ -8,8 +7,7 @@ import org.jetbrains.annotations.NotNull;
 public class WaxArtifact extends Artifact {
     public WaxArtifact() {
         super(
-                "wax_artifact",
-                Prerequisite.HAS_1_17
+                "wax_artifact"
         );
     }
 
diff --git a/eco-core/core-plugin/src/main/java/com/willfp/ecoenchants/enchantments/ecoenchants/normal/InfernalTouch.java b/eco-core/core-plugin/src/main/java/com/willfp/ecoenchants/enchantments/ecoenchants/normal/InfernalTouch.java
index 2cfebdd7..27ababe7 100644
--- a/eco-core/core-plugin/src/main/java/com/willfp/ecoenchants/enchantments/ecoenchants/normal/InfernalTouch.java
+++ b/eco-core/core-plugin/src/main/java/com/willfp/ecoenchants/enchantments/ecoenchants/normal/InfernalTouch.java
@@ -1,6 +1,5 @@
 package com.willfp.ecoenchants.enchantments.ecoenchants.normal;
 
-import com.willfp.eco.core.Prerequisite;
 import com.willfp.eco.core.drops.DropQueue;
 import com.willfp.eco.core.integrations.antigrief.AntigriefManager;
 import com.willfp.eco.core.tuples.Pair;
@@ -52,9 +51,7 @@ public class InfernalTouch extends EcoEnchant {
             RECIPES.put(furnaceRecipe.getInput().getType(), new Pair<>(furnaceRecipe.getResult().getType(), xp));
         }
 
-        if (Prerequisite.HAS_1_17.isMet()) {
-            FORTUNE_MATERIALS.add(Material.COPPER_INGOT);
-        }
+        FORTUNE_MATERIALS.add(Material.COPPER_INGOT);
     }
 
     public InfernalTouch() {
diff --git a/eco-core/core-plugin/src/main/java/com/willfp/ecoenchants/enchantments/ecoenchants/normal/Replenish.java b/eco-core/core-plugin/src/main/java/com/willfp/ecoenchants/enchantments/ecoenchants/normal/Replenish.java
index 5033b8e7..d048a144 100644
--- a/eco-core/core-plugin/src/main/java/com/willfp/ecoenchants/enchantments/ecoenchants/normal/Replenish.java
+++ b/eco-core/core-plugin/src/main/java/com/willfp/ecoenchants/enchantments/ecoenchants/normal/Replenish.java
@@ -1,6 +1,5 @@
 package com.willfp.ecoenchants.enchantments.ecoenchants.normal;
 
-import com.willfp.eco.core.Prerequisite;
 import com.willfp.ecoenchants.enchantments.EcoEnchant;
 import com.willfp.ecoenchants.enchantments.meta.EnchantmentType;
 import org.bukkit.Material;
@@ -32,12 +31,11 @@ public class Replenish extends EcoEnchant {
             return;
         }
 
-        if (Prerequisite.HAS_1_17.isMet()) {
-            if (block.getType() == Material.GLOW_BERRIES) {
-                return;
-            }
+        if (block.getType() == Material.GLOW_BERRIES) {
+            return;
         }
 
+
         if (data.getAge() != data.getMaximumAge()) {
             event.setDropItems(false);
             event.setExpToDrop(0);
diff --git a/eco-core/core-plugin/src/main/resources/plugin.yml b/eco-core/core-plugin/src/main/resources/plugin.yml
index 424f68fd..c8d9b114 100644
--- a/eco-core/core-plugin/src/main/resources/plugin.yml
+++ b/eco-core/core-plugin/src/main/resources/plugin.yml
@@ -1,7 +1,7 @@
 name: EcoEnchants
 version: ${projectVersion}
 main: com.willfp.ecoenchants.EcoEnchantsPlugin
-api-version: 1.16
+api-version: 1.17
 authors: [ Auxilor ]
 website: willfp.com
 load: STARTUP
diff --git a/eco-core/core-proxy/build.gradle b/eco-core/core-proxy/build.gradle
index 3f90b631..5795f8bc 100644
--- a/eco-core/core-proxy/build.gradle
+++ b/eco-core/core-proxy/build.gradle
@@ -2,5 +2,5 @@ group 'com.willfp'
 version rootProject.version
 
 dependencies {
-    compileOnly 'org.spigotmc:spigot-api:1.16.4-R0.1-SNAPSHOT'
+    compileOnly 'org.spigotmc:spigot-api:1.17.1-R0.1-SNAPSHOT'
 }
\ No newline at end of file
diff --git a/eco-extensions/build.gradle b/eco-extensions/build.gradle
index e18dcfa6..fac46e61 100644
--- a/eco-extensions/build.gradle
+++ b/eco-extensions/build.gradle
@@ -5,7 +5,7 @@ subprojects {
     dependencies {
         compileOnly project(":eco-core:core-plugin")
         compileOnly project(":eco-core:core-proxy")
-        compileOnly 'org.spigotmc:spigot-api:1.16.4-R0.1-SNAPSHOT'
+        compileOnly 'org.spigotmc:spigot-api:1.17.1-R0.1-SNAPSHOT'
         compileOnly 'com.willfp:libreforge:3.3.0'
     }
 
diff --git a/settings.gradle b/settings.gradle
index f6d41df4..9172271e 100644
--- a/settings.gradle
+++ b/settings.gradle
@@ -3,7 +3,6 @@ rootProject.name = 'EcoEnchants'
 // Core
 include ':eco-core'
 include ':eco-core:core-nms'
-include ':eco-core:core-nms:v1_16_R3'
 include ':eco-core:core-nms:v1_17_R1'
 include ':eco-core:core-nms:v1_18_R1'
 include ':eco-core:core-proxy'