diff --git a/README.md b/README.md
index b2018ae..845c3e2 100644
--- a/README.md
+++ b/README.md
@@ -49,7 +49,7 @@ Minecraft Bedrock Edition 假人客户端
 * JavaScript API
 
 ## 支持的版本
-* 理论上支持1.7.0到1.18.0之间的所有版本
+* 理论上支持1.7.0到1.18.30之间的所有版本
 
 ## WebSocket API
 * FakePlayer提供WebSocket API以供其他插件/程序与FakePlayer进行通信，目前支持的操作有添加/删除假人，获取假人列表等
diff --git a/build.gradle b/build.gradle
index 09df631..024ed70 100644
--- a/build.gradle
+++ b/build.gradle
@@ -31,7 +31,7 @@ repositories {
 }
 
 dependencies {
-    implementation 'com.nukkitx.protocol:bedrock-v486:2.9.5-SNAPSHOT'
+    implementation 'com.nukkitx.protocol:bedrock-v503:2.9.6-SNAPSHOT'
     implementation 'com.google.code.gson:gson:2.8.7'
     implementation 'org.yaml:snakeyaml:1.29'
     implementation 'com.formdev:flatlaf:1.5'
diff --git a/src/main/java/com/ddf/fakeplayer/util/ProtocolVersionUtil.java b/src/main/java/com/ddf/fakeplayer/util/ProtocolVersionUtil.java
index a9c3448..e1e2387 100644
--- a/src/main/java/com/ddf/fakeplayer/util/ProtocolVersionUtil.java
+++ b/src/main/java/com/ddf/fakeplayer/util/ProtocolVersionUtil.java
@@ -20,6 +20,7 @@
 import com.nukkitx.protocol.bedrock.v471.Bedrock_v471;
 import com.nukkitx.protocol.bedrock.v475.Bedrock_v475;
 import com.nukkitx.protocol.bedrock.v486.Bedrock_v486;
+import com.nukkitx.protocol.bedrock.v503.Bedrock_v503;
 
 import java.io.IOException;
 import java.util.Collections;
@@ -56,6 +57,7 @@ public class ProtocolVersionUtil {
         registerPacketCodec(Bedrock_v471.V471_CODEC, 10, "blockpalette_1.17.41.01_v471.nbt");
         registerPacketCodec(Bedrock_v475.V475_CODEC, 10, "blockpalette_1.18.2.03_v475.nbt");
         registerPacketCodec(Bedrock_v486.V486_CODEC, 10, null);
+        registerPacketCodec(Bedrock_v503.V503_CODEC, 10, null);
         codecMap = Collections.unmodifiableMap(codecMap);
         rakNetVersionMap = Collections.unmodifiableMap(rakNetVersionMap);
         blockPaletteMap = Collections.unmodifiableMap(blockPaletteMap);