diff --git a/pom.xml b/pom.xml
index bdeaa86..45d6650 100644
--- a/pom.xml
+++ b/pom.xml
@@ -33,7 +33,7 @@
         <dependency>
             <groupId>com.google.guava</groupId>
             <artifactId>guava</artifactId>
-            <version>23.6-jre</version>
+            <version>29.0-jre</version>
         </dependency>
         <dependency>
             <groupId>edu.stanford.nlp</groupId>