diff --git a/src/main/kotlin/io/spring/messenger/domain/Message.kt b/src/main/kotlin/io/spring/messenger/domain/Message.kt
index 35d9fdf..a2dca55 100644
--- a/src/main/kotlin/io/spring/messenger/domain/Message.kt
+++ b/src/main/kotlin/io/spring/messenger/domain/Message.kt
@@ -2,7 +2,7 @@ package io.spring.messenger.domain
 
 import org.postgis.Point
 
-data class Message(
+class Message(
     var content  : String,
     var author   : String,
     var location : Point? = null,
diff --git a/src/main/kotlin/io/spring/messenger/domain/User.kt b/src/main/kotlin/io/spring/messenger/domain/User.kt
index 9ce2082..d83b188 100644
--- a/src/main/kotlin/io/spring/messenger/domain/User.kt
+++ b/src/main/kotlin/io/spring/messenger/domain/User.kt
@@ -2,7 +2,7 @@ package io.spring.messenger.domain
 
 import org.postgis.Point
 
-data class User(
+class User(
     var userName  : String,
     var firstName : String,
     var lastName  : String,