diff --git a/application/src/main/java/org/thingsboard/server/service/security/model/SecuritySettings.java b/application/src/main/java/org/thingsboard/server/service/security/model/SecuritySettings.java
index 19da818d32..f7d795dde5 100644
--- a/application/src/main/java/org/thingsboard/server/service/security/model/SecuritySettings.java
+++ b/application/src/main/java/org/thingsboard/server/service/security/model/SecuritySettings.java
@@ -17,8 +17,10 @@ package org.thingsboard.server.service.security.model;
 
 import lombok.Data;
 
+import java.io.Serializable;
+
 @Data
-public class SecuritySettings {
+public class SecuritySettings implements Serializable {
 
     private UserPasswordPolicy passwordPolicy;
 
diff --git a/application/src/main/java/org/thingsboard/server/service/security/model/UserPasswordPolicy.java b/application/src/main/java/org/thingsboard/server/service/security/model/UserPasswordPolicy.java
index 6d570d4c9a..7b7a6ee334 100644
--- a/application/src/main/java/org/thingsboard/server/service/security/model/UserPasswordPolicy.java
+++ b/application/src/main/java/org/thingsboard/server/service/security/model/UserPasswordPolicy.java
@@ -17,8 +17,10 @@ package org.thingsboard.server.service.security.model;
 
 import lombok.Data;
 
+import java.io.Serializable;
+
 @Data
-public class UserPasswordPolicy {
+public class UserPasswordPolicy implements Serializable {
 
     private Integer minimumLength;
     private Integer minimumUppercaseLetters;