diff --git a/pom.xml b/pom.xml
index 79f68fe..ff2d73c 100644
--- a/pom.xml
+++ b/pom.xml
@@ -2,7 +2,7 @@
     <modelVersion>4.0.0</modelVersion>
     <groupId>pw.yumc</groupId>
     <artifactId>MiaoScript</artifactId>
-    <version>0.7.5</version>
+    <version>0.9.1</version>
     <developers>
         <developer>
             <id>502647092</id>
@@ -53,6 +53,8 @@
     <properties>
         <env.GIT_COMMIT>DEV</env.GIT_COMMIT>
         <update.changes>
+            §620-08-27 §afeat: 新增ProtocolLib依赖;
+            §620-07-28 §afeat: 新增框架升级功能;
             §620-06-23 §afeat: 支持自定义参数;
             §620-06-22 §afeat: 优化 require 加载逻辑;
             §620-05-28 §afeat: 新增 Spring 的支持;
diff --git a/src/main/java/pw/yumc/MiaoScript/Base.java b/src/main/java/pw/yumc/MiaoScript/Base.java
index 7568d80..cff4006 100644
--- a/src/main/java/pw/yumc/MiaoScript/Base.java
+++ b/src/main/java/pw/yumc/MiaoScript/Base.java
@@ -6,8 +6,6 @@ import java.nio.file.Files;
 import java.nio.file.Path;
 import java.util.stream.Collectors;
 
-import lombok.val;
-
 /**
  * Created with IntelliJ IDEA
  *
@@ -48,7 +46,7 @@ public class Base {
     }
 
     public void delete(Path path) throws IOException {
-        val file = path.toFile();
+        File file = path.toFile();
         if (!file.exists()) { return; }
         if (file.isDirectory()) {
             for (Path f : Files.list(file.toPath()).collect(Collectors.toList())) {
diff --git a/src/main/resources/bios.js b/src/main/resources/bios.js
index adef27a..76bce52 100644
--- a/src/main/resources/bios.js
+++ b/src/main/resources/bios.js
@@ -22,6 +22,11 @@ var global = this;
             global.level = base.read(java.nio.file.Paths.get(root, "level"))
             logger.info('Set system level to [' + global.level + ']...');
         }
+        if (java.nio.file.Files.exists(java.nio.file.Paths.get(root, "upgrade"))) {
+            logger.info('Found upgrade file starting upgrade...');
+            base.delete(java.nio.file.Paths.get(root, "node_modules"))
+            base.delete(java.nio.file.Paths.get(root, "upgrade"))
+        }
         // Check Class Loader, Sometimes Server will can't found plugin.yml file
         loader = checkClassLoader();
         // Async Loading MiaoScript Engine
diff --git a/src/main/resources/plugin.yml b/src/main/resources/plugin.yml
index 9f86cff..fa163a2 100644
--- a/src/main/resources/plugin.yml
+++ b/src/main/resources/plugin.yml
@@ -8,4 +8,5 @@ website: ${ciManagement.url}
 load: STARTUP
 softdepend:
 - PlaceholderAPI
+- ProtocolLib
 - Vault