diff --git a/buildSrc/src/main/groovy/Deps.groovy b/buildSrc/src/main/groovy/Deps.groovy
index 7abc7ef19e0..59f0931db40 100644
--- a/buildSrc/src/main/groovy/Deps.groovy
+++ b/buildSrc/src/main/groovy/Deps.groovy
@@ -47,7 +47,7 @@ class Deps {
     public static String javaxAnnotationsVersion = "1.3.2"
 
     // extensions versions
-    public static String hazelcastVersion = "5.2.3"
+    public static String hazelcastVersion = "5.1.5"
     //Last version compatible with hibernate 5
     public static String hazelcastHibernateVersion = "2.1.1"