diff --git a/spring-boot-seckill/pom.xml b/spring-boot-seckill/pom.xml
index b2ea181..a7bbc60 100644
--- a/spring-boot-seckill/pom.xml
+++ b/spring-boot-seckill/pom.xml
@@ -109,7 +109,7 @@
         <dependency>
             <groupId>com.google.guava</groupId>
             <artifactId>guava</artifactId>
-            <version>25.1-jre</version>
+            <version>29.0-jre</version>
         </dependency>
         <dependency>
             <groupId>commons-codec</groupId>