diff --git a/pom.xml b/pom.xml
index cac0c7d7b..de8bc439b 100644
--- a/pom.xml
+++ b/pom.xml
@@ -90,7 +90,7 @@
     <dependency>
       <groupId>org.bukkit</groupId>
       <artifactId>craftbukkit</artifactId>
-      <version>1.3.1-R2.0</version>
+      <version>1.4.6-R0.1</version>
       <scope>compile</scope>
       <optional>true</optional>
     </dependency>
diff --git a/src/main/java/com/sk89q/worldedit/bukkit/NmsBlock.java b/src/main/java/com/sk89q/worldedit/bukkit/NmsBlock.java
index 1bec84d96..b95543182 100644
--- a/src/main/java/com/sk89q/worldedit/bukkit/NmsBlock.java
+++ b/src/main/java/com/sk89q/worldedit/bukkit/NmsBlock.java
@@ -14,7 +14,7 @@
  *
  * You should have received a copy of the GNU Lesser General Public License along with
  * this program. If not, see <http://www.gnu.org/licenses/>.
-*/
+ */
 
 package com.sk89q.worldedit.bukkit;
 
@@ -26,23 +26,23 @@ import java.util.List;
 import java.util.Map;
 import java.util.logging.Logger;
 
-import net.minecraft.server.NBTBase;
-import net.minecraft.server.NBTTagByte;
-import net.minecraft.server.NBTTagByteArray;
-import net.minecraft.server.NBTTagCompound;
-import net.minecraft.server.NBTTagDouble;
-import net.minecraft.server.NBTTagEnd;
-import net.minecraft.server.NBTTagFloat;
-import net.minecraft.server.NBTTagInt;
-import net.minecraft.server.NBTTagIntArray;
-import net.minecraft.server.NBTTagList;
-import net.minecraft.server.NBTTagLong;
-import net.minecraft.server.NBTTagShort;
-import net.minecraft.server.NBTTagString;
-import net.minecraft.server.TileEntity;
+import net.minecraft.server.v1_4_6.NBTBase;
+import net.minecraft.server.v1_4_6.NBTTagByte;
+import net.minecraft.server.v1_4_6.NBTTagByteArray;
+import net.minecraft.server.v1_4_6.NBTTagCompound;
+import net.minecraft.server.v1_4_6.NBTTagDouble;
+import net.minecraft.server.v1_4_6.NBTTagEnd;
+import net.minecraft.server.v1_4_6.NBTTagFloat;
+import net.minecraft.server.v1_4_6.NBTTagInt;
+import net.minecraft.server.v1_4_6.NBTTagIntArray;
+import net.minecraft.server.v1_4_6.NBTTagList;
+import net.minecraft.server.v1_4_6.NBTTagLong;
+import net.minecraft.server.v1_4_6.NBTTagShort;
+import net.minecraft.server.v1_4_6.NBTTagString;
+import net.minecraft.server.v1_4_6.TileEntity;
 
 import org.bukkit.World;
-import org.bukkit.craftbukkit.CraftWorld;
+import org.bukkit.craftbukkit.v1_4_6.CraftWorld;
 
 import com.sk89q.jnbt.ByteArrayTag;
 import com.sk89q.jnbt.ByteTag;
@@ -81,7 +81,7 @@ class NmsBlock extends BaseBlock implements TileEntityBlock {
     static {
         Field field;
         try {
-            field = net.minecraft.server.Block.class.getDeclaredField("isTileEntity");
+            field = net.minecraft.server.v1_4_6.Block.class.getDeclaredField("isTileEntity");
             field.setAccessible(true);
         } catch (NoSuchFieldException e) {
             logger.severe("Could not find NMS block tile entity field!");
@@ -266,7 +266,7 @@ class NmsBlock extends BaseBlock implements TileEntityBlock {
     }
 
     public static boolean hasTileEntity(int type) {
-        net.minecraft.server.Block nmsBlock = getNmsBlock(type);
+        net.minecraft.server.v1_4_6.Block nmsBlock = getNmsBlock(type);
         if (nmsBlock == null) {
             return false;
         }
@@ -278,11 +278,11 @@ class NmsBlock extends BaseBlock implements TileEntityBlock {
         }
     }
 
-    public static net.minecraft.server.Block getNmsBlock(int type) {
-        if (type < 0 || type >= net.minecraft.server.Block.byId.length) {
+    public static net.minecraft.server.v1_4_6.Block getNmsBlock(int type) {
+        if (type < 0 || type >= net.minecraft.server.v1_4_6.Block.byId.length) {
             return null;
         }
-        return net.minecraft.server.Block.byId[type];
+        return net.minecraft.server.v1_4_6.Block.byId[type];
     }
 
     /**
@@ -308,7 +308,7 @@ class NmsBlock extends BaseBlock implements TileEntityBlock {
                 } catch (Throwable t) {
                     try {
                         logger.warning("WorldEdit: Couldn't get NBTTagCompound.c(), " +
-                        		"so we're going to try to get at the 'map' field directly from now on");
+                                "so we're going to try to get at the 'map' field directly from now on");
 
                         if (compoundMapField == null) {
                             compoundMapField = NBTTagCompound.class.getDeclaredField("map");
@@ -436,7 +436,7 @@ class NmsBlock extends BaseBlock implements TileEntityBlock {
     }
 
     public static boolean isValidBlockType(int type) throws NoClassDefFoundError {
-        return type == 0 || (type >= 1 && type < net.minecraft.server.Block.byId.length
-                && net.minecraft.server.Block.byId[type] != null);
+        return type == 0 || (type >= 1 && type < net.minecraft.server.v1_4_6.Block.byId.length
+                && net.minecraft.server.v1_4_6.Block.byId[type] != null);
     }
 }