diff --git a/business-sample/pom.xml b/business-sample/pom.xml
index 93f488d..736c802 100644
--- a/business-sample/pom.xml
+++ b/business-sample/pom.xml
@@ -27,7 +27,7 @@
         <dependency>
             <groupId>com.google.guava</groupId>
             <artifactId>guava</artifactId>
-            <version>26.0-jre</version>
+            <version>29.0-jre</version>
         </dependency>
         <dependency>
             <groupId>org.apache.httpcomponents</groupId>