diff --git a/spring-boot-admin-ops/admin_tool/pom.xml b/spring-boot-admin-ops/admin_tool/pom.xml
index bb0f54d..f7283b1 100644
--- a/spring-boot-admin-ops/admin_tool/pom.xml
+++ b/spring-boot-admin-ops/admin_tool/pom.xml
@@ -21,7 +21,7 @@
         <spring-boot-admin.version>2.0.1</spring-boot-admin.version>
         <spring-boot-admin.server.version>2.1.6</spring-boot-admin.server.version>
         <spring-boot-admin-server-ui-login.version>1.5.7</spring-boot-admin-server-ui-login.version>
-        <hazelcast.version>4.0.5</hazelcast.version>
+        <hazelcast.version>5.3.0</hazelcast.version>
     </properties>
 
     <dependencyManagement>