diff --git a/pom.xml b/pom.xml
index e8c6f8f..0cf0ba6 100644
--- a/pom.xml
+++ b/pom.xml
@@ -25,6 +25,7 @@
             <id>everything</id>
             <url>https://repo.citizensnpcs.co/</url>
         </repository>
+
     </repositories>
 
     <dependencies>
@@ -109,8 +110,14 @@
         </dependency>
         <dependency>
             <groupId>org.mongodb</groupId>
-            <artifactId>mongodb-driver</artifactId>
-            <version>3.12.9</version>
+            <artifactId>mongo-java-driver</artifactId>
+            <version>3.12.14</version>
+        </dependency>
+        <dependency>
+            <groupId>com.github.Demeng7215.PluginBase</groupId>
+            <artifactId>pluginbase-mongo</artifactId>
+            <version>2576382518</version>
+            <scope>compile</scope>
         </dependency>
         <dependency>
             <groupId>net.citizne</groupId>
diff --git a/src/main/java/land/battle/practice/arena/Arena.java b/src/main/java/land/battle/practice/arena/Arena.java
index 4868add..cdffaea 100644
--- a/src/main/java/land/battle/practice/arena/Arena.java
+++ b/src/main/java/land/battle/practice/arena/Arena.java
@@ -29,7 +29,6 @@ public class Arena {
 
     private AsyncLocation min;
     private AsyncLocation max;
-    private int deadZone;
     private boolean enabled = false;
 
     private Flag flag = Flag.DEFAULT;