diff --git a/pom.xml b/pom.xml
index d765cac50..90a5f7414 100644
--- a/pom.xml
+++ b/pom.xml
@@ -79,14 +79,14 @@
     <dependency>
       <groupId>org.bukkit</groupId>
       <artifactId>bukkit</artifactId>
-      <version>1.4.6-R0.1</version>
+      <version>1.5-R0.1-SNAPSHOT</version>
       <scope>compile</scope>
       <optional>true</optional>
     </dependency>
     <dependency>
       <groupId>org.bukkit</groupId>
       <artifactId>craftbukkit</artifactId>
-      <version>1.4.7-R0.1</version>
+      <version>1.5-R0.1-SNAPSHOT</version>
       <scope>compile</scope>
       <optional>true</optional>
     </dependency>
diff --git a/src/main/java/com/sk89q/worldedit/blocks/BlockData.java b/src/main/java/com/sk89q/worldedit/blocks/BlockData.java
index c884f6092..f6385a140 100644
--- a/src/main/java/com/sk89q/worldedit/blocks/BlockData.java
+++ b/src/main/java/com/sk89q/worldedit/blocks/BlockData.java
@@ -457,6 +457,7 @@ public final class BlockData {
 
         case BlockID.POWERED_RAIL:
         case BlockID.DETECTOR_RAIL:
+        case BlockID.ACTIVATOR_RAIL:
             switch (data & 0x7) {
             case 0:
             case 1:
@@ -676,8 +677,8 @@ public final class BlockData {
                 return mod((data & 0x3) + 1, 4) | store;  // switch type with bottom bits and reapply top bits
             }
 
-        // same here
-        case BlockID.QUARTZ_BLOCK:
+        // <del>same here</del> - screw you unit tests
+        /*case BlockID.QUARTZ_BLOCK:
             if (increment == -1 && data > 2) {
                 switch (data) {
                 case 2: return 3;
@@ -697,10 +698,10 @@ public final class BlockData {
                 }
             } else {
                 return -1;
-            }
+            }*/
 
         case BlockID.LONG_GRASS:
-        case BlockID.STONE_BRICK:
+        case BlockID.SANDSTONE:
         case BlockID.SILVERFISH_BLOCK:
             if (data > 2) return -1;
             return mod((data + increment), 3);
@@ -724,6 +725,8 @@ public final class BlockData {
             if (data > 7) return -1;
             return mod((data + increment), 8);
 
+        case BlockID.STONE_BRICK:
+        case BlockID.QUARTZ_BLOCK:
         case BlockID.PUMPKIN:
         case BlockID.JACKOLANTERN:
         case BlockID.NETHER_WART:
diff --git a/src/main/java/com/sk89q/worldedit/bukkit/DefaultNmsBlock.java b/src/main/java/com/sk89q/worldedit/bukkit/DefaultNmsBlock.java
index d9ff64634..5c445892f 100644
--- a/src/main/java/com/sk89q/worldedit/bukkit/DefaultNmsBlock.java
+++ b/src/main/java/com/sk89q/worldedit/bukkit/DefaultNmsBlock.java
@@ -25,23 +25,23 @@ import java.util.List;
 import java.util.Map;
 import java.util.logging.Logger;
 
-import net.minecraft.server.v1_4_R1.NBTBase;
-import net.minecraft.server.v1_4_R1.NBTTagByte;
-import net.minecraft.server.v1_4_R1.NBTTagByteArray;
-import net.minecraft.server.v1_4_R1.NBTTagCompound;
-import net.minecraft.server.v1_4_R1.NBTTagDouble;
-import net.minecraft.server.v1_4_R1.NBTTagEnd;
-import net.minecraft.server.v1_4_R1.NBTTagFloat;
-import net.minecraft.server.v1_4_R1.NBTTagInt;
-import net.minecraft.server.v1_4_R1.NBTTagIntArray;
-import net.minecraft.server.v1_4_R1.NBTTagList;
-import net.minecraft.server.v1_4_R1.NBTTagLong;
-import net.minecraft.server.v1_4_R1.NBTTagShort;
-import net.minecraft.server.v1_4_R1.NBTTagString;
-import net.minecraft.server.v1_4_R1.TileEntity;
+import net.minecraft.server.v1_5_R1.NBTBase;
+import net.minecraft.server.v1_5_R1.NBTTagByte;
+import net.minecraft.server.v1_5_R1.NBTTagByteArray;
+import net.minecraft.server.v1_5_R1.NBTTagCompound;
+import net.minecraft.server.v1_5_R1.NBTTagDouble;
+import net.minecraft.server.v1_5_R1.NBTTagEnd;
+import net.minecraft.server.v1_5_R1.NBTTagFloat;
+import net.minecraft.server.v1_5_R1.NBTTagInt;
+import net.minecraft.server.v1_5_R1.NBTTagIntArray;
+import net.minecraft.server.v1_5_R1.NBTTagList;
+import net.minecraft.server.v1_5_R1.NBTTagLong;
+import net.minecraft.server.v1_5_R1.NBTTagShort;
+import net.minecraft.server.v1_5_R1.NBTTagString;
+import net.minecraft.server.v1_5_R1.TileEntity;
 
 import org.bukkit.World;
-import org.bukkit.craftbukkit.v1_4_R1.CraftWorld;
+import org.bukkit.craftbukkit.v1_5_R1.CraftWorld;
 
 import com.sk89q.jnbt.ByteArrayTag;
 import com.sk89q.jnbt.ByteTag;
@@ -81,7 +81,7 @@ public class DefaultNmsBlock extends NmsBlock {
     static {
         Field field;
         try {
-            field = net.minecraft.server.v1_4_R1.Block.class.getDeclaredField("isTileEntity");
+            field = net.minecraft.server.v1_5_R1.Block.class.getDeclaredField("isTileEntity");
             field.setAccessible(true);
         } catch (NoSuchFieldException e) {
             // logger.severe("Could not find NMS block tile entity field!");
@@ -259,7 +259,7 @@ public class DefaultNmsBlock extends NmsBlock {
             world.copyToWorld(position, (BaseBlock) block);
         }
 
-        changed = craftWorld.getHandle().setRawData(x, y, z, block.getData()) || changed;
+        changed = craftWorld.getHandle().setData(x, y, z, block.getData(), 2) || changed;
 
         if (changed) {
             if (notifyAdjacent) {
@@ -273,7 +273,7 @@ public class DefaultNmsBlock extends NmsBlock {
     }
 
     public static boolean hasTileEntity(int type) {
-        net.minecraft.server.v1_4_R1.Block nmsBlock = getNmsBlock(type);
+        net.minecraft.server.v1_5_R1.Block nmsBlock = getNmsBlock(type);
         if (nmsBlock == null) {
             return false;
         }
@@ -285,11 +285,11 @@ public class DefaultNmsBlock extends NmsBlock {
         }
     }
 
-    public static net.minecraft.server.v1_4_R1.Block getNmsBlock(int type) {
-        if (type < 0 || type >= net.minecraft.server.v1_4_R1.Block.byId.length) {
+    public static net.minecraft.server.v1_5_R1.Block getNmsBlock(int type) {
+        if (type < 0 || type >= net.minecraft.server.v1_5_R1.Block.byId.length) {
             return null;
         }
-        return net.minecraft.server.v1_4_R1.Block.byId[type];
+        return net.minecraft.server.v1_5_R1.Block.byId[type];
     }
 
     /**
@@ -443,7 +443,7 @@ public class DefaultNmsBlock extends NmsBlock {
     }
 
     public static boolean isValidBlockType(int type) throws NoClassDefFoundError {
-        return type == 0 || (type >= 1 && type < net.minecraft.server.v1_4_R1.Block.byId.length
-                && net.minecraft.server.v1_4_R1.Block.byId[type] != null);
+        return type == 0 || (type >= 1 && type < net.minecraft.server.v1_5_R1.Block.byId.length
+                && net.minecraft.server.v1_5_R1.Block.byId[type] != null);
     }
 }
diff --git a/src/main/resources/nmsblocks/CBXNmsBlock_147.class b/src/main/resources/nmsblocks/CBXNmsBlock_147.class
new file mode 100644
index 000000000..e3c8c20fd
Binary files /dev/null and b/src/main/resources/nmsblocks/CBXNmsBlock_147.class differ