diff --git a/subzero-all-it-hz40/pom.xml b/subzero-all-it-hz40/pom.xml
index 506b5c8..24be633 100644
--- a/subzero-all-it-hz40/pom.xml
+++ b/subzero-all-it-hz40/pom.xml
@@ -10,7 +10,7 @@
     <artifactId>subzero-all-it-hz40</artifactId>
 
     <properties>
-        <hazelcast.version>4.0</hazelcast.version>
+        <hazelcast.version>5.1</hazelcast.version>
     </properties>
 
     <dependencies>