diff --git a/pom.xml b/pom.xml
index 33e822c0..ef55d48d 100644
--- a/pom.xml
+++ b/pom.xml
@@ -9,7 +9,7 @@
         <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
         <jackson.version>2.11.0</jackson.version>
         <dropwizard.version>2.0.20</dropwizard.version>
-        <guava.version>29.0-jre</guava.version>
+        <guava.version>31.1-jre</guava.version>
         <pay-java-commons.version>1.0.20210412085046</pay-java-commons.version>
         <junit5.version>5.7.1</junit5.version>
     </properties>