diff --git a/build.gradle b/build.gradle
index c2d8a44..c586179 100644
--- a/build.gradle
+++ b/build.gradle
@@ -41,7 +41,7 @@ allprojects {
     }
 
     dependencies {
-        compileOnly 'com.willfp:eco:6.18.1'
+        compileOnly 'com.willfp:eco:6.20.0'
         compileOnly fileTree(dir: '../../lib', include: ['*.jar'])
 
 
diff --git a/eco-core/core-plugin/src/main/java/com/willfp/ecoskills/skills/Skills.java b/eco-core/core-plugin/src/main/java/com/willfp/ecoskills/skills/Skills.java
index 7699a67..519375d 100644
--- a/eco-core/core-plugin/src/main/java/com/willfp/ecoskills/skills/Skills.java
+++ b/eco-core/core-plugin/src/main/java/com/willfp/ecoskills/skills/Skills.java
@@ -1,6 +1,7 @@
 package com.willfp.ecoskills.skills;
 
 import com.google.common.collect.ImmutableSet;
+import com.willfp.eco.core.EcoPlugin;
 import com.willfp.eco.core.config.updating.ConfigUpdater;
 import com.willfp.eco.core.integrations.placeholder.PlaceholderEntry;
 import com.willfp.eco.util.NumberUtils;
@@ -59,8 +60,9 @@ public class Skills {
     }
 
     @ConfigUpdater
-    public static void update() {
+    public static void update(@NotNull final EcoPlugin plugin) {
         new PlaceholderEntry(
+                plugin,
                 "skill_multiplier",
                 (player -> NumberUtils.format(EcoSkillsPlayerKt.getSkillExperienceMultiplier(player))),
                 true
diff --git a/eco-core/core-plugin/src/main/kotlin/com/willfp/ecoskills/effects/Effect.kt b/eco-core/core-plugin/src/main/kotlin/com/willfp/ecoskills/effects/Effect.kt
index def767c..27dae87 100644
--- a/eco-core/core-plugin/src/main/kotlin/com/willfp/ecoskills/effects/Effect.kt
+++ b/eco-core/core-plugin/src/main/kotlin/com/willfp/ecoskills/effects/Effect.kt
@@ -11,7 +11,7 @@ import com.willfp.ecoskills.SkillObject
 import com.willfp.ecoskills.getEffectLevel
 import org.bukkit.NamespacedKey
 import org.bukkit.event.Listener
-import java.util.UUID
+import java.util.*
 
 abstract class Effect(
     id: String
@@ -51,18 +51,21 @@ abstract class Effect(
 
     fun update() {
         PlaceholderEntry(
+            plugin,
             id,
             { player -> player.getEffectLevel(this).toString() },
             true
         ).register()
 
         PlaceholderEntry(
+            plugin,
             "${id}_numeral",
             { player -> NumberUtils.toNumeral(player.getEffectLevel(this)) },
             true
         ).register()
 
         PlaceholderEntry(
+            plugin,
             "${id}_description",
             { player -> this.getDescription(player.getEffectLevel(this)) },
             true
diff --git a/eco-core/core-plugin/src/main/kotlin/com/willfp/ecoskills/skills/Skill.kt b/eco-core/core-plugin/src/main/kotlin/com/willfp/ecoskills/skills/Skill.kt
index 39d27f2..356e6a6 100644
--- a/eco-core/core-plugin/src/main/kotlin/com/willfp/ecoskills/skills/Skill.kt
+++ b/eco-core/core-plugin/src/main/kotlin/com/willfp/ecoskills/skills/Skill.kt
@@ -7,14 +7,10 @@ import com.willfp.eco.core.data.keys.PersistentDataKeyType
 import com.willfp.eco.core.integrations.placeholder.PlaceholderEntry
 import com.willfp.eco.util.NumberUtils
 import com.willfp.eco.util.StringUtils
-import com.willfp.ecoskills.EcoSkillsPlugin
-import com.willfp.ecoskills.SkillObject
+import com.willfp.ecoskills.*
 import com.willfp.ecoskills.config.SkillConfig
 import com.willfp.ecoskills.effects.Effect
 import com.willfp.ecoskills.effects.Effects
-import com.willfp.ecoskills.getAverageSkillLevel
-import com.willfp.ecoskills.getSkillLevel
-import com.willfp.ecoskills.getTotalSkillLevel
 import com.willfp.ecoskills.stats.Stats
 import org.bukkit.Bukkit
 import org.bukkit.NamespacedKey
@@ -86,24 +82,28 @@ abstract class Skill(
         }
 
         PlaceholderEntry(
+            plugin,
             id,
             { player -> player.getSkillLevel(this).toString() },
             true
         ).register()
 
         PlaceholderEntry(
+            plugin,
             "${id}_numeral",
             { player -> NumberUtils.toNumeral(player.getSkillLevel(this)) },
             true
         ).register()
 
         PlaceholderEntry(
+            plugin,
             "average_skill_level",
             { player -> NumberUtils.format(player.getAverageSkillLevel()) },
             true
         ).register()
 
         PlaceholderEntry(
+            plugin,
             "total_skill_level",
             { player -> player.getTotalSkillLevel().toString() },
             true
diff --git a/eco-core/core-plugin/src/main/kotlin/com/willfp/ecoskills/stats/Stat.kt b/eco-core/core-plugin/src/main/kotlin/com/willfp/ecoskills/stats/Stat.kt
index 253f5be..4d7f9c4 100644
--- a/eco-core/core-plugin/src/main/kotlin/com/willfp/ecoskills/stats/Stat.kt
+++ b/eco-core/core-plugin/src/main/kotlin/com/willfp/ecoskills/stats/Stat.kt
@@ -6,15 +6,11 @@ import com.willfp.eco.core.data.keys.PersistentDataKey
 import com.willfp.eco.core.data.keys.PersistentDataKeyType
 import com.willfp.eco.core.integrations.placeholder.PlaceholderEntry
 import com.willfp.eco.util.NumberUtils
-import com.willfp.ecoskills.EcoSkillsPlugin
-import com.willfp.ecoskills.SkillObject
-import com.willfp.ecoskills.getBaseStatLevel
-import com.willfp.ecoskills.getBonusStatLevel
-import com.willfp.ecoskills.getStatLevel
+import com.willfp.ecoskills.*
 import org.bukkit.NamespacedKey
 import org.bukkit.entity.Player
 import org.bukkit.event.Listener
-import java.util.UUID
+import java.util.*
 
 abstract class Stat(
     id: String
@@ -51,30 +47,35 @@ abstract class Stat(
         name = config.getString("name")
 
         PlaceholderEntry(
+            plugin,
             id,
             { player -> player.getStatLevel(this).toString() },
             true
         ).register()
 
         PlaceholderEntry(
+            plugin,
             "${id}_numeral",
             { player -> NumberUtils.toNumeral(player.getStatLevel(this)) },
             true
         ).register()
 
         PlaceholderEntry(
+            plugin,
             "${id}_base",
             { player -> player.getBaseStatLevel(this).toString() },
             true
         ).register()
 
         PlaceholderEntry(
+            plugin,
             "${id}_base_numeral",
             { player -> NumberUtils.toNumeral(player.getBaseStatLevel(this)) },
             true
         ).register()
 
         PlaceholderEntry(
+            plugin,
             "${id}_bonus",
             { player ->
                 val bonus = player.getBonusStatLevel(this)
@@ -88,6 +89,7 @@ abstract class Stat(
         ).register()
 
         PlaceholderEntry(
+            plugin,
             "${id}_name",
             { this.name },
             false
diff --git a/gradle.properties b/gradle.properties
index 0304645..96d32fb 100644
--- a/gradle.properties
+++ b/gradle.properties
@@ -1,2 +1,2 @@
-version = 1.20.5
+version = 1.20.6
 plugin-name = EcoSkills
\ No newline at end of file