diff --git a/xmppserver/pom.xml b/xmppserver/pom.xml
index 2af1cdec53..48e5c576a6 100644
--- a/xmppserver/pom.xml
+++ b/xmppserver/pom.xml
@@ -442,7 +442,7 @@
         <dependency>
             <groupId>com.google.guava</groupId>
             <artifactId>guava</artifactId>
-            <version>32.0.1-jre</version>
+            <version>33.6.0-jre</version>
         </dependency>
         <dependency>
             <groupId>com.github.jgonian</groupId>