diff --git a/src/me/StevenLawson/TotalFreedomMod/TFM_ServerInterface.java b/src/me/StevenLawson/TotalFreedomMod/TFM_ServerInterface.java
index 10b019a..764a7f9 100644
--- a/src/me/StevenLawson/TotalFreedomMod/TFM_ServerInterface.java
+++ b/src/me/StevenLawson/TotalFreedomMod/TFM_ServerInterface.java
@@ -5,8 +5,8 @@ import java.util.List;
 import java.util.UUID;
 import java.util.regex.Pattern;
 import me.StevenLawson.TotalFreedomMod.Config.TFM_ConfigEntry;
-import net.minecraft.server.v1_7_R3.MinecraftServer;
-import net.minecraft.server.v1_7_R3.PropertyManager;
+import net.minecraft.server.v1_7_R4.MinecraftServer;
+import net.minecraft.server.v1_7_R4.PropertyManager;
 import org.bukkit.ChatColor;
 import org.bukkit.Server;
 import org.bukkit.entity.Player;
@@ -15,13 +15,13 @@ import org.bukkit.event.player.PlayerLoginEvent.Result;
 
 public class TFM_ServerInterface
 {
-    public static final String COMPILE_NMS_VERSION = "v1_7_R3";
+    public static final String COMPILE_NMS_VERSION = "v1_7_R4";
     public static final Pattern USERNAME_REGEX = Pattern.compile("^[\\w\\d_]{3,20}$");
 
     public static void setOnlineMode(boolean mode)
     {
         final PropertyManager manager = MinecraftServer.getServer().getPropertyManager();
-        manager.a("online-mode", mode);
+        manager.setProperty("online-mode", mode);
         manager.savePropertiesFile();
     }