diff --git a/jseckill-backend/pom.xml b/jseckill-backend/pom.xml
index d30373e..21b235f 100644
--- a/jseckill-backend/pom.xml
+++ b/jseckill-backend/pom.xml
@@ -85,7 +85,7 @@
         <dependency>
             <groupId>com.google.guava</groupId>
             <artifactId>guava</artifactId>
-            <version>27.0.1-jre</version>
+            <version>29.0-jre</version>
         </dependency>
         <dependency>
             <groupId>org.springframework.boot</groupId>