diff --git a/ServerManager/pom.xml b/ServerManager/pom.xml
old mode 100755
new mode 100644
index 56ef2e3..8f3f2da
--- a/ServerManager/pom.xml
+++ b/ServerManager/pom.xml
@@ -136,7 +136,7 @@
     <dependency>
       <groupId>com.google.guava</groupId>
       <artifactId>guava</artifactId>
-      <version>26.0-jre</version>
+      <version>29.0-jre</version>
     </dependency>
 
   </dependencies>