diff --git a/_3tsp/pom.xml b/_3tsp/pom.xml
index 336d75c..2ba7f22 100644
--- a/_3tsp/pom.xml
+++ b/_3tsp/pom.xml
@@ -30,7 +30,7 @@
         <dependency>
             <groupId>com.google.guava</groupId>
             <artifactId>guava</artifactId>
-            <version>27.1-jre</version>
+            <version>29.0-jre</version>
         </dependency>
         <dependency>
             <groupId>org.junit.jupiter</groupId>