diff --git a/code/pom.xml b/code/pom.xml
index de3f728..b683568 100644
--- a/code/pom.xml
+++ b/code/pom.xml
@@ -48,7 +48,7 @@
 			<groupId>com.google.guava</groupId>
 			<artifactId>guava</artifactId>
 			<scope>test</scope>
-			<version>28.2-jre</version>
+			<version>29.0-jre</version>
 		</dependency>
 		<dependency>
 			<groupId>com.github.tomakehurst</groupId>