diff --git a/Lesson7/pom.xml b/Lesson7/pom.xml
index 3d78237..44b4f70 100644
--- a/Lesson7/pom.xml
+++ b/Lesson7/pom.xml
@@ -28,7 +28,7 @@
         <dependency>
             <groupId>com.hazelcast</groupId>
             <artifactId>hazelcast</artifactId>
-            <version>3.7.2</version>
+            <version>5.3.5</version>
         </dependency>