diff --git a/pom.xml b/pom.xml
index bf38f87..269f5b0 100644
--- a/pom.xml
+++ b/pom.xml
@@ -58,14 +58,14 @@
         <!-- Non-minecraft related dependencies -->
         <powermock.version>2.0.9</powermock.version>
         <!-- More visible way how to change dependency versions -->
-        <spigot.version>1.20.2-R0.1-SNAPSHOT</spigot.version>
+        <spigot.version>1.20.4-R0.1-SNAPSHOT</spigot.version>
         <bentobox.version>2.0.0-SNAPSHOT</bentobox.version>
         <!-- Revision variable removes warning about dynamic version -->
         <revision>${build.version}-SNAPSHOT</revision>
         <!-- Do not change unless you want different name for local builds. -->
         <build.number>-LOCAL</build.number>
         <!-- This allows to change between versions. -->
-        <build.version>2.3.1</build.version>
+        <build.version>2.4.0</build.version>
 
         <sonar.projectKey>BentoBoxWorld_Boxed</sonar.projectKey>
         <sonar.organization>bentobox-world</sonar.organization>
@@ -346,7 +346,9 @@
                         <!-- This is required to prevent Jacoco from adding 
                             synthetic fields to a JavaBean class (causes errors in testing) -->
                         <exclude>**/*Names*</exclude>
-                    </excludes>
+                         <!-- Prevents the Material is too large to mock error -->
+                        <exclude>org/bukkit/Material*</exclude>
+                   </excludes>
                 </configuration>
                 <executions>
                     <execution>
diff --git a/src/main/java/world/bentobox/boxed/listeners/NewAreaListener.java b/src/main/java/world/bentobox/boxed/listeners/NewAreaListener.java
index f9b7b2b..64787cc 100644
--- a/src/main/java/world/bentobox/boxed/listeners/NewAreaListener.java
+++ b/src/main/java/world/bentobox/boxed/listeners/NewAreaListener.java
@@ -27,7 +27,7 @@
 import org.bukkit.block.structure.StructureRotation;
 import org.bukkit.configuration.ConfigurationSection;
 import org.bukkit.configuration.file.YamlConfiguration;
-import org.bukkit.craftbukkit.v1_20_R2.CraftWorld;
+import org.bukkit.craftbukkit.v1_20_R3.CraftWorld;
 import org.bukkit.entity.Entity;
 import org.bukkit.entity.EntityType;
 import org.bukkit.entity.Player;
@@ -552,7 +552,7 @@ private static String nmsData(Block block) {
 	// for 1.13+ (we have use WorldServer)
 	TileEntity te = cw.getHandle().c_(new BlockPosition(w.getBlockX(), w.getBlockY(), w.getBlockZ()));
 	try {
-	    PacketPlayOutTileEntityData packet = ((PacketPlayOutTileEntityData) te.h()); // get update packet from NMS
+        PacketPlayOutTileEntityData packet = ((PacketPlayOutTileEntityData) te.j()); // get update packet from NMS
 											 // object
 	    // here we should use reflection because "c" field isn't accessible
 	    Field f = packet.getClass().getDeclaredField("c"); // get field