diff --git a/src/main/java/com/Acrobot/Breeze/Utils/ImplementationAdapter.java b/src/main/java/com/Acrobot/Breeze/Utils/ImplementationAdapter.java
index 2075380..171fa6c 100644
--- a/src/main/java/com/Acrobot/Breeze/Utils/ImplementationAdapter.java
+++ b/src/main/java/com/Acrobot/Breeze/Utils/ImplementationAdapter.java
@@ -2,6 +2,7 @@ package com.Acrobot.Breeze.Utils;
 
 import org.bukkit.block.Block;
 import org.bukkit.block.BlockState;
+import org.bukkit.block.DoubleChest;
 import org.bukkit.inventory.Inventory;
 import org.bukkit.inventory.InventoryHolder;
 
@@ -10,6 +11,8 @@ import java.util.function.BiFunction;
 public class ImplementationAdapter {
 
     private static BiFunction<Inventory, Boolean, InventoryHolder> HOLDER_PROVIDER;
+    private static BiFunction<DoubleChest, Boolean, InventoryHolder> LEFT_HOLDER_PROVIDER;
+    private static BiFunction<DoubleChest, Boolean, InventoryHolder> RIGHT_HOLDER_PROVIDER;
     private static BiFunction<Block, Boolean, BlockState> STATE_PROVIDER;
 
     static {
@@ -17,8 +20,12 @@ public class ImplementationAdapter {
             Inventory.class.getMethod("getHolder", boolean.class);
             Class c = Class.forName("com.Acrobot.Breeze.Utils.ImplementationFeatures.PaperLatestHolder");
             HOLDER_PROVIDER = (BiFunction<Inventory, Boolean, InventoryHolder>) c.getDeclaredField("PROVIDER").get(null);
+            LEFT_HOLDER_PROVIDER = (BiFunction<DoubleChest, Boolean, InventoryHolder>) c.getDeclaredField("LEFT_PROVIDER").get(null);
+            RIGHT_HOLDER_PROVIDER = (BiFunction<DoubleChest, Boolean, InventoryHolder>) c.getDeclaredField("RIGHT_PROVIDER").get(null);
         } catch (NoSuchMethodException | ClassNotFoundException | NoSuchFieldException | IllegalAccessException e) {
             HOLDER_PROVIDER = (inventory, useSnapshot) -> inventory.getHolder();
+            LEFT_HOLDER_PROVIDER = (doubleChest, useSnapshot) -> doubleChest.getLeftSide();
+            RIGHT_HOLDER_PROVIDER = (doubleChest, useSnapshot) -> doubleChest.getRightSide();
         }
         try {
             Block.class.getMethod("getState", boolean.class);
@@ -39,6 +46,26 @@ public class ImplementationAdapter {
         return HOLDER_PROVIDER.apply(inventory, useSnapshot);
     }
 
+    /**
+     * Get the a DoubleChest's left side
+     * @param doubleChest   The DoubleChest
+     * @param useSnapshot   Whether or not the holder should be a snapshot (if possible)
+     * @return The left side's holder
+     */
+    public static InventoryHolder getLeftSide(DoubleChest doubleChest, boolean useSnapshot) {
+        return LEFT_HOLDER_PROVIDER.apply(doubleChest, useSnapshot);
+    }
+
+    /**
+     * Get the a DoubleChest's right side
+     * @param doubleChest   The DoubleChest
+     * @param useSnapshot   Whether or not the holder should be a snapshot (if possible)
+     * @return The left right's holder
+     */
+    public static InventoryHolder getRightSide(DoubleChest doubleChest, boolean useSnapshot) {
+        return RIGHT_HOLDER_PROVIDER.apply(doubleChest, useSnapshot);
+    }
+
     /**
      * Get a block state
      * @param block         The block to get the state from
diff --git a/src/main/java/com/Acrobot/Breeze/Utils/ImplementationFeatures/PaperLatestHolder.java b/src/main/java/com/Acrobot/Breeze/Utils/ImplementationFeatures/PaperLatestHolder.java
index aa59983..4259df1 100644
--- a/src/main/java/com/Acrobot/Breeze/Utils/ImplementationFeatures/PaperLatestHolder.java
+++ b/src/main/java/com/Acrobot/Breeze/Utils/ImplementationFeatures/PaperLatestHolder.java
@@ -1,5 +1,6 @@
 package com.Acrobot.Breeze.Utils.ImplementationFeatures;
 
+import org.bukkit.block.DoubleChest;
 import org.bukkit.inventory.Inventory;
 import org.bukkit.inventory.InventoryHolder;
 
@@ -9,4 +10,8 @@ public class PaperLatestHolder {
 
     public static final BiFunction<Inventory, Boolean, InventoryHolder> PROVIDER = Inventory::getHolder;
 
+    public static final BiFunction<DoubleChest, Boolean, InventoryHolder> LEFT_PROVIDER = DoubleChest::getLeftSide;
+
+    public static final BiFunction<DoubleChest, Boolean, InventoryHolder> RIGHT_PROVIDER = DoubleChest::getRightSide;
+
 }
diff --git a/src/main/java/com/Acrobot/ChestShop/Listeners/PostTransaction/ItemManager.java b/src/main/java/com/Acrobot/ChestShop/Listeners/PostTransaction/ItemManager.java
index 5ebe660..c7535b7 100644
--- a/src/main/java/com/Acrobot/ChestShop/Listeners/PostTransaction/ItemManager.java
+++ b/src/main/java/com/Acrobot/ChestShop/Listeners/PostTransaction/ItemManager.java
@@ -1,9 +1,12 @@
 package com.Acrobot.ChestShop.Listeners.PostTransaction;
 
+import com.Acrobot.Breeze.Utils.ImplementationAdapter;
 import com.Acrobot.Breeze.Utils.InventoryUtil;
+import com.Acrobot.ChestShop.ChestShop;
 import com.Acrobot.ChestShop.Configuration.Properties;
 import com.Acrobot.ChestShop.Events.TransactionEvent;
 import org.bukkit.block.BlockState;
+import org.bukkit.block.DoubleChest;
 import org.bukkit.entity.Player;
 import org.bukkit.event.EventHandler;
 import org.bukkit.event.EventPriority;
@@ -54,9 +57,11 @@ public class ItemManager implements Listener {
     private static void update(InventoryHolder holder) {
         if (holder instanceof Player) {
             ((Player) holder).updateInventory();
-        }
-        if (holder instanceof BlockState) {
+        } else if (holder instanceof BlockState) {
             ((BlockState) holder).update();
+        } else if (holder instanceof DoubleChest) {
+            update(ImplementationAdapter.getLeftSide((DoubleChest) holder, false));
+            update(ImplementationAdapter.getRightSide((DoubleChest) holder, false));
         }
     }
 }