diff --git a/src/main/java/mc/protocol/ProtocolConstant.java b/src/main/java/mc/protocol/ProtocolConstant.java
new file mode 100644
index 0000000..bbf9292
--- /dev/null
+++ b/src/main/java/mc/protocol/ProtocolConstant.java
@@ -0,0 +1,10 @@
+package mc.protocol;
+
+import lombok.experimental.UtilityClass;
+
+@UtilityClass
+public class ProtocolConstant {
+
+    public final int PROTOCOL_VERSION = 47;
+    public final String PROTOCOL_VERSION_VALUE = "1.8.8";
+}