diff --git a/Lab4-1160300314/pom.xml b/Lab4-1160300314/pom.xml
index a4f0b36..b703606 100644
--- a/Lab4-1160300314/pom.xml
+++ b/Lab4-1160300314/pom.xml
@@ -89,7 +89,7 @@
     <dependency>
       <groupId>com.google.guava</groupId>
       <artifactId>guava</artifactId>
-      <version>24.1-jre</version>
+      <version>29.0-jre</version>
     </dependency>
     <!-- https://mvnrepository.com/artifact/log4j/log4j -->
     <dependency>