diff --git a/eco-core/core-plugin/src/main/java/com/willfp/ecobosses/EcoBossesPlugin.java b/eco-core/core-plugin/src/main/java/com/willfp/ecobosses/EcoBossesPlugin.java
index 7f1d29d..569b8cf 100644
--- a/eco-core/core-plugin/src/main/java/com/willfp/ecobosses/EcoBossesPlugin.java
+++ b/eco-core/core-plugin/src/main/java/com/willfp/ecobosses/EcoBossesPlugin.java
@@ -3,9 +3,12 @@ package com.willfp.ecobosses;
 import com.willfp.eco.core.EcoPlugin;
 import com.willfp.eco.core.command.impl.PluginCommand;
 import com.willfp.eco.core.integrations.IntegrationLoader;
-import com.willfp.ecobosses.bosses.listeners.*;
+import com.willfp.ecobosses.bosses.listeners.AttackListeners;
+import com.willfp.ecobosses.bosses.listeners.AutoSpawnTimer;
+import com.willfp.ecobosses.bosses.listeners.DeathListeners;
+import com.willfp.ecobosses.bosses.listeners.PassiveListeners;
+import com.willfp.ecobosses.bosses.listeners.SpawnListeners;
 import com.willfp.ecobosses.bosses.util.BossUtils;
-import com.willfp.ecobosses.bosses.util.bosstype.BossEntityUtils;
 import com.willfp.ecobosses.commands.CommandEcobosses;
 import com.willfp.ecobosses.integrations.levelledmobs.LevelledMobsListener;
 import com.willfp.ecobosses.util.DiscoverRecipeListener;
@@ -31,6 +34,11 @@ public class EcoBossesPlugin extends EcoPlugin {
         instance = this;
     }
 
+    @Override
+    public String getMinimumEcoVersion() {
+        return "6.9.0";
+    }
+
     @Override
     protected void handleDisable() {
         BossUtils.killAllBosses();