diff --git a/testing-server/pom.xml b/testing-server/pom.xml
index c6bceee..e20301e 100644
--- a/testing-server/pom.xml
+++ b/testing-server/pom.xml
@@ -110,7 +110,7 @@
         <dependency>
             <groupId>com.google.guava</groupId>
             <artifactId>guava</artifactId>
-            <version>26.0-jre</version>
+            <version>29.0-jre</version>
         </dependency>
         <dependency>
             <groupId>com.alibaba</groupId>