diff --git a/uk.ac.kcl.inf.mdeoptimiser.languages/pom.xml b/uk.ac.kcl.inf.mdeoptimiser.languages/pom.xml
index 09cbce2..e064433 100644
--- a/uk.ac.kcl.inf.mdeoptimiser.languages/pom.xml
+++ b/uk.ac.kcl.inf.mdeoptimiser.languages/pom.xml
@@ -255,7 +255,7 @@
 		<dependency>
 			<groupId>com.google.guava</groupId>
 			<artifactId>guava</artifactId>
-			<version>27.1-jre</version>
+			<version>29.0-jre</version>
 		</dependency>
 	</dependencies>
 </project>