diff --git a/src/main/java/databuilder/pom.xml b/src/main/java/databuilder/pom.xml
index acbde67..085f60d 100644
--- a/src/main/java/databuilder/pom.xml
+++ b/src/main/java/databuilder/pom.xml
@@ -38,7 +38,7 @@
         <dependency>
             <groupId>com.google.guava</groupId>
             <artifactId>guava</artifactId>
-            <version>24.0-jre</version>
+            <version>29.0-jre</version>
         </dependency>
         <dependency>
             <groupId>com.rabbitmq</groupId>