diff --git a/demo0129/pom.xml b/demo0129/pom.xml
index 00adc85..3651764 100644
--- a/demo0129/pom.xml
+++ b/demo0129/pom.xml
@@ -108,7 +108,7 @@
 		<dependency>
 			<groupId>com.google.guava</groupId>
 			<artifactId>guava</artifactId>
-			<version>26.0-jre</version>
+			<version>29.0-jre</version>
 		</dependency>
 
 
@@ -122,7 +122,7 @@
     <dependency>
         <groupId>com.google.guava</groupId>
         <artifactId>guava</artifactId>
-        <version>18.0</version>
+        <version>29.0-jre</version>
     </dependency>
     <dependency>
         <groupId>org.projectlombok</groupId>