diff --git a/build.gradle b/build.gradle
index 7f3d03d..bc53750 100644
--- a/build.gradle
+++ b/build.gradle
@@ -52,8 +52,8 @@ dependencies {
     compileOnly 'com.sk89q.worldedit:worldedit-bukkit:7.2.15'
     compileOnly 'com.sk89q.worldguard:worldguard-bukkit:7.0.9'
     compileOnly "dev.jorel:commandapi-bukkit-core:9.2.0"
-    compileOnly files("libs/MechanicsCore-3.1.2.jar")
-    compileOnly files("libs/WeaponMechanics-3.1.1.jar")
+    compileOnly files("libs/MechanicsCore-3.3.1.jar")
+    compileOnly files("libs/WeaponMechanics-3.3.1.jar")
     compileOnly 'me.neznamy:tab-api:4.0.2'
 
     shadowIn "xyz.xenondevs.invui:invui:1.15"
diff --git a/libs/MechanicsCore-3.1.2.jar b/libs/MechanicsCore-3.1.2.jar
deleted file mode 100644
index 9bf781f..0000000
Binary files a/libs/MechanicsCore-3.1.2.jar and /dev/null differ
diff --git a/libs/MechanicsCore-3.3.1.jar b/libs/MechanicsCore-3.3.1.jar
new file mode 100644
index 0000000..332ac2e
Binary files /dev/null and b/libs/MechanicsCore-3.3.1.jar differ
diff --git a/libs/WeaponMechanics-3.1.1.jar b/libs/WeaponMechanics-3.1.1.jar
deleted file mode 100644
index 9e4c76c..0000000
Binary files a/libs/WeaponMechanics-3.1.1.jar and /dev/null differ
diff --git a/libs/WeaponMechanics-3.3.1.jar b/libs/WeaponMechanics-3.3.1.jar
new file mode 100644
index 0000000..40d6db8
Binary files /dev/null and b/libs/WeaponMechanics-3.3.1.jar differ
diff --git a/src/main/java/dev/felnull/shortlifeplugin/listener/CommonListener.java b/src/main/java/dev/felnull/shortlifeplugin/listener/CommonListener.java
index 2ddef22..6172a54 100644
--- a/src/main/java/dev/felnull/shortlifeplugin/listener/CommonListener.java
+++ b/src/main/java/dev/felnull/shortlifeplugin/listener/CommonListener.java
@@ -9,7 +9,6 @@
 import dev.felnull.shortlifeplugin.match.MatchManager;
 import dev.felnull.shortlifeplugin.match.TeamBaseMatch;
 import dev.felnull.shortlifeplugin.utils.WeaponMechanicsUtils;
-import me.deecaad.weaponmechanics.events.WeaponMechanicsEntityDamageByEntityEvent;
 import me.deecaad.weaponmechanics.weapon.weaponevents.WeaponDamageEntityEvent;
 import net.kyori.adventure.text.Component;
 import net.kyori.adventure.text.event.ClickEvent;
@@ -90,7 +89,7 @@ private static void sendTestMessage(Player player) {
     @EventHandler(priority = EventPriority.MONITOR, ignoreCancelled = true)
     public void onDamage(EntityDamageEvent e) {
         // WeaponMechanicsのダメージ以外
-        if (!(e instanceof WeaponMechanicsEntityDamageByEntityEvent) && e.getEntity() instanceof LivingEntity livingEntity
+        if (!WeaponMechanicsUtils.isDoingWeaponDamageEvent(e) && e.getEntity() instanceof LivingEntity livingEntity
                 && BloodExpression.isSpawnDamageParticle(livingEntity, e.getDamage())) {
             spawnDamageParticle(e, livingEntity);
         }
@@ -170,8 +169,8 @@ public void onPlayerDeath(PlayerDeathEvent e) {
      */
     private void sendDeathMessage(PlayerDeathEvent e, Player killed, Player killer) {
         ItemStack stack = killer.getEquipment().getItemInMainHand();
-        Component weapon = !stack.isEmpty() 
-                ? stack.displayName() 
+        Component weapon = !stack.isEmpty()
+                ? stack.displayName()
                 : Component.text(MsgHandler.get("event-death-bare-hand")).color(NamedTextColor.RED).decorate(TextDecoration.BOLD);
         NamedTextColor killedColor = TeamBaseMatch.getTeamColor(killed);
         NamedTextColor killerColor = TeamBaseMatch.getTeamColor(killer);
diff --git a/src/main/java/dev/felnull/shortlifeplugin/utils/WeaponMechanicsUtils.java b/src/main/java/dev/felnull/shortlifeplugin/utils/WeaponMechanicsUtils.java
index 36131cc..257f501 100644
--- a/src/main/java/dev/felnull/shortlifeplugin/utils/WeaponMechanicsUtils.java
+++ b/src/main/java/dev/felnull/shortlifeplugin/utils/WeaponMechanicsUtils.java
@@ -1,11 +1,12 @@
 package dev.felnull.shortlifeplugin.utils;
 
-import me.deecaad.core.compatibility.CompatibilityAPI;
 import me.deecaad.core.file.Configuration;
 import me.deecaad.weaponmechanics.WeaponMechanics;
 import me.deecaad.weaponmechanics.weapon.damage.DamagePoint;
+import org.bukkit.entity.Entity;
 import org.bukkit.entity.EntityType;
 import org.bukkit.entity.LivingEntity;
+import org.bukkit.event.entity.EntityDamageEvent;
 import org.bukkit.util.BoundingBox;
 import org.bukkit.util.Vector;
 import org.jetbrains.annotations.NotNull;
@@ -20,6 +21,11 @@
  */
 public class WeaponMechanicsUtils {
 
+    /**
+     * 銃ダメージイベントの間だけ付与されるメタデータ名
+     */
+    private static final String WEAPON_DAMAGE_EVENT_METADATA = "doing-weapon-damage";
+
     private WeaponMechanicsUtils() {
         throw new AssertionError();
     }
@@ -42,7 +48,7 @@ public static Optional<BoundingBox> getDamagePointBox(@NotNull LivingEntity livi
 
         Configuration basicConfiguration = WeaponMechanics.getBasicConfigurations();
         EntityType type = livingEntity.getType();
-        double entityHeight = CompatibilityAPI.getEntityCompatibility().getHeight(livingEntity);
+        double entityHeight = livingEntity.getHeight(); // CompatibilityAPI.getEntityCompatibility().getHeight(livingEntity);
         BoundingBox boundingBox = livingEntity.getBoundingBox();
         Vector boxMin = boundingBox.getMin();
         Vector boxMax = boundingBox.getMax();
@@ -89,4 +95,17 @@ public static Optional<BoundingBox> getDamagePointBox(@NotNull LivingEntity livi
 
         return Optional.ofNullable(ret);
     }
+
+    /**
+     * 銃のダメージイベントかどうか確認<br/>
+     * 銃ダメージでのイベント中のみ特定のメタデータが付与される仕様<br/>
+     * もし今後この仕様が変更された場合は、{@link me.deecaad.weaponmechanics.weapon.damage.DamageUtil}を参照
+     *
+     * @param e ダメージイベント
+     * @return 銃ダメージでのイベントかどうか
+     */
+    public static boolean isDoingWeaponDamageEvent(EntityDamageEvent e) {
+        Entity entity = e.getEntity();
+        return entity.hasMetadata(WEAPON_DAMAGE_EVENT_METADATA);
+    }
 }