diff --git a/src/main/java/org/codelibs/fess/app/service/UserService.java b/src/main/java/org/codelibs/fess/app/service/UserService.java
index bbcdae77b..cc344785b 100644
--- a/src/main/java/org/codelibs/fess/app/service/UserService.java
+++ b/src/main/java/org/codelibs/fess/app/service/UserService.java
@@ -57,7 +57,7 @@ public class UserService implements Serializable {
 
         return userList;
     }
-    
+
     public OptionalEntity<User> getUser(final String id) {
         return userBhv.selectByPK(id);
     }
diff --git a/src/main/java/org/codelibs/fess/app/web/admin/user/AdminUserAction.java b/src/main/java/org/codelibs/fess/app/web/admin/user/AdminUserAction.java
index 8cd23a031..2114b28a6 100644
--- a/src/main/java/org/codelibs/fess/app/web/admin/user/AdminUserAction.java
+++ b/src/main/java/org/codelibs/fess/app/web/admin/user/AdminUserAction.java
@@ -384,7 +384,8 @@ public class AdminUserAction extends FessAdminAction {
             }, toEditHtml());
         }
     }
-         protected void verifyPassword(final CreateForm form) {
+
+    protected void verifyPassword(final CreateForm form) {
         if (form.crudMode == CrudMode.CREATE && StringUtil.isBlank(form.password)) {
             throwValidationError(messages -> {
                 messages.addErrorsBlankPassword(GLOBAL);
diff --git a/src/main/java/org/codelibs/fess/es/exentity/Group.java b/src/main/java/org/codelibs/fess/es/exentity/Group.java
index 0a9d152ee..c6904ba3b 100644
--- a/src/main/java/org/codelibs/fess/es/exentity/Group.java
+++ b/src/main/java/org/codelibs/fess/es/exentity/Group.java
@@ -8,4 +8,12 @@ import org.codelibs.fess.es.bsentity.BsGroup;
 public class Group extends BsGroup {
 
     private static final long serialVersionUID = 1L;
+
+    public Long getVersionNo() {
+        return asDocMeta().version();
+    }
+
+    public void setVersionNo(final Long version) {
+        asDocMeta().version(version);
+    }
 }
diff --git a/src/main/java/org/codelibs/fess/es/exentity/Role.java b/src/main/java/org/codelibs/fess/es/exentity/Role.java
index bd5ecd039..421df5c5f 100644
--- a/src/main/java/org/codelibs/fess/es/exentity/Role.java
+++ b/src/main/java/org/codelibs/fess/es/exentity/Role.java
@@ -8,4 +8,12 @@ import org.codelibs.fess.es.bsentity.BsRole;
 public class Role extends BsRole {
 
     private static final long serialVersionUID = 1L;
+
+    public Long getVersionNo() {
+        return asDocMeta().version();
+    }
+
+    public void setVersionNo(final Long version) {
+        asDocMeta().version(version);
+    }
 }
diff --git a/src/main/java/org/codelibs/fess/es/exentity/User.java b/src/main/java/org/codelibs/fess/es/exentity/User.java
index 1af71760b..9ab00f7f2 100644
--- a/src/main/java/org/codelibs/fess/es/exentity/User.java
+++ b/src/main/java/org/codelibs/fess/es/exentity/User.java
@@ -13,6 +13,14 @@ public class User extends BsUser {
 
     private static final long serialVersionUID = 1L;
 
+    public Long getVersionNo() {
+        return asDocMeta().version();
+    }
+
+    public void setVersionNo(final Long version) {
+        asDocMeta().version(version);
+    }
+
     public String[] getRoleNames() {
         return Stream.of(getRoles()).map(role -> new String(Base64.getDecoder().decode(role), Constants.CHARSET_UTF_8))
                 .toArray(n -> new String[n]);