diff --git a/forge/src/main/java/crystalspider/justverticalslabs/JustVerticalSlabsLoader.java b/forge/src/main/java/crystalspider/justverticalslabs/JustVerticalSlabsLoader.java
index 9301a4f..b4ae661 100644
--- a/forge/src/main/java/crystalspider/justverticalslabs/JustVerticalSlabsLoader.java
+++ b/forge/src/main/java/crystalspider/justverticalslabs/JustVerticalSlabsLoader.java
@@ -55,7 +55,7 @@ public class JustVerticalSlabsLoader {
   /**
    * Network channel protocol version.
    */
-  public static final String PROTOCOL_VERSION = "3.2";
+  public static final String PROTOCOL_VERSION = "1.18-4.0";
   /**
    * {@link SimpleChannel} instance for compatibility client-server.
    */