diff --git a/core/src/main/java/net/momirealms/craftengine/core/item/equipment/AbstractEquipment.java b/core/src/main/java/net/momirealms/craftengine/core/item/equipment/AbstractEquipment.java
index 19eba975e..bc315c190 100644
--- a/core/src/main/java/net/momirealms/craftengine/core/item/equipment/AbstractEquipment.java
+++ b/core/src/main/java/net/momirealms/craftengine/core/item/equipment/AbstractEquipment.java
@@ -2,11 +2,13 @@ package net.momirealms.craftengine.core.item.equipment;
 
 import net.momirealms.craftengine.core.util.Key;
 
+import java.util.Objects;
+
 public abstract class AbstractEquipment implements Equipment {
     protected final Key assetId;
 
     protected AbstractEquipment(Key assetId) {
-        this.assetId = assetId;
+        this.assetId = Objects.requireNonNull(assetId, "assetId cannot be null");
     }
 
     @Override
diff --git a/gradle.properties b/gradle.properties
index 85bace46e..5ad74eca6 100644
--- a/gradle.properties
+++ b/gradle.properties
@@ -1,7 +1,7 @@
 org.gradle.jvmargs=-Xmx1G
 
 # Project settings
-project_version=0.0.65.12
+project_version=0.0.65.12.2
 config_version=58
 lang_version=40
 project_group=net.momirealms
@@ -48,7 +48,7 @@ byte_buddy_version=1.18.1
 ahocorasick_version=0.6.3
 snake_yaml_version=2.5
 anti_grief_version=1.0.5
-nms_helper_version=1.0.136
+nms_helper_version=1.0.137
 evalex_version=3.5.0
 reactive_streams_version=1.0.4
 amazon_awssdk_version=2.38.7