diff --git a/StevenDimDoors/mod_pocketDim/DDLoot.java b/StevenDimDoors/mod_pocketDim/DDLoot.java
index 7e6c646..4226697 100644
--- a/StevenDimDoors/mod_pocketDim/DDLoot.java
+++ b/StevenDimDoors/mod_pocketDim/DDLoot.java
@@ -1,7 +1,7 @@
 package StevenDimDoors.mod_pocketDim;
 
 import java.util.ArrayList;
-import java.util.Hashtable;
+import java.util.HashMap;
 import java.util.Random;
 
 import net.minecraft.item.Item;
@@ -77,7 +77,7 @@ public class DDLoot {
 		//the same item. For instance, it cannot distinguish between different types of wood. That shouldn't
 		//matter for most chest loot, though. This could be fixed if we cared enough.
 		Random random = new Random();
-		Hashtable<Integer, WeightedRandomChestContent> container = new Hashtable<Integer, WeightedRandomChestContent>();
+		HashMap<Integer, WeightedRandomChestContent> container = new HashMap<Integer, WeightedRandomChestContent>();
 		
 		for (String category : categories)
 		{
diff --git a/StevenDimDoors/mod_pocketDim/helpers/DungeonHelper.java b/StevenDimDoors/mod_pocketDim/helpers/DungeonHelper.java
index af66469..2ca027d 100644
--- a/StevenDimDoors/mod_pocketDim/helpers/DungeonHelper.java
+++ b/StevenDimDoors/mod_pocketDim/helpers/DungeonHelper.java
@@ -5,7 +5,6 @@ import java.io.FileOutputStream;
 import java.util.ArrayList;
 import java.util.HashMap;
 import java.util.HashSet;
-import java.util.Hashtable;
 import java.util.Random;
 import java.util.regex.Pattern;
 
@@ -75,7 +74,7 @@ public class DungeonHelper
 	public DungeonGenerator defaultUp = new DungeonGenerator(0, "/schematic/simpleStairsUp.schematic", true);
 	
 	private HashSet<String> dungeonTypeChecker;
-	private Hashtable<String, ArrayList<DungeonGenerator>> dungeonTypeMapping;
+	private HashMap<String, ArrayList<DungeonGenerator>> dungeonTypeMapping;
 	
 	private DungeonHelper()
 	{
@@ -88,7 +87,7 @@ public class DungeonHelper
 		}
 		
 		//Add all the basic dungeon types to dungeonTypeMapping
-		dungeonTypeMapping = new Hashtable<String, ArrayList<DungeonGenerator>>();
+		dungeonTypeMapping = new HashMap<String, ArrayList<DungeonGenerator>>();
 		dungeonTypeMapping.put(SIMPLE_HALL_DUNGEON_TYPE, simpleHalls);
 		dungeonTypeMapping.put(COMPLEX_HALL_DUNGEON_TYPE, complexHalls);
 		dungeonTypeMapping.put(HUB_DUNGEON_TYPE, hubs);