diff --git a/client/src/views/modals/mass-update.js b/client/src/views/modals/mass-update.js
index 027ee849ad..7a3eb47154 100644
--- a/client/src/views/modals/mass-update.js
+++ b/client/src/views/modals/mass-update.js
@@ -52,7 +52,7 @@ class MassUpdateModalView extends ModalView {
     events = {
         /** @this MassUpdateModalView */
         'click a[data-action="add-field"]': function (e) {
-            let field = $(e.currentTarget).data('name');
+            const field = $(e.currentTarget).data('name');
 
             this.addField(field);
         },
@@ -86,7 +86,7 @@ class MassUpdateModalView extends ModalView {
 
         this.hasActionMap = {};
 
-        let totalCount = this.options.totalCount;
+        const totalCount = this.options.totalCount;
 
         this.helper = new MassActionHelper(this);
 
@@ -139,11 +139,11 @@ class MassUpdateModalView extends ModalView {
 
         this.addedFieldList.push(name);
 
-        let label = this.getHelper().escapeString(
+        const label = this.getHelper().escapeString(
             this.translate(name, 'fields', this.entityType)
         );
 
-        let $cell =
+        const $cell =
             $('<div>')
                 .addClass('cell form-group')
                 .attr('data-name', name)
@@ -158,7 +158,7 @@ class MassUpdateModalView extends ModalView {
                         .attr('data-name', name)
                 );
 
-        let $row =
+        const $row =
             $('<div>')
                 .addClass('item grid-auto-fill-md')
                 .attr('data-name', name)
@@ -166,13 +166,13 @@ class MassUpdateModalView extends ModalView {
 
         this.$el.find('.fields-container').append($row);
 
-        let type = this.model.getFieldType(name);
-        let viewName = this.model.getFieldParam(name, 'view') || this.getFieldManager().getViewName(type);
+        const type = this.model.getFieldType(name);
+        const viewName = this.model.getFieldParam(name, 'view') || this.getFieldManager().getViewName(type);
 
-        let actionList = this.getMetadata().get(['entityDefs', this.entityType, name, 'massUpdateActionList']) ||
+        const actionList = this.getMetadata().get(['entityDefs', this.entityType, name, 'massUpdateActionList']) ||
             this.getMetadata().get(['fields', type, 'massUpdateActionList']);
 
-        let hasActionDropdown = actionList !== null;
+        const hasActionDropdown = actionList !== null;
 
         this.hasActionMap[name] = hasActionDropdown;
 
@@ -192,13 +192,13 @@ class MassUpdateModalView extends ModalView {
         });
 
         if (hasActionDropdown) {
-            let $select =
+            const $select =
                 $('<select>')
                     .addClass('item-action form-control')
                     .attr('data-name', name);
 
             actionList.forEach(action => {
-                let label = this.translate(Espo.Utils.upperCaseFirst(action));
+                const label = this.translate(Espo.Utils.upperCaseFirst(action));
 
                 $select.append(
                     $('<option>')
@@ -207,7 +207,7 @@ class MassUpdateModalView extends ModalView {
                 );
             });
 
-            let $cellAction =
+            const $cellAction =
                 $('<div>')
                     .addClass('cell call-action form-group')
                     .attr('data-name', name)
@@ -239,14 +239,14 @@ class MassUpdateModalView extends ModalView {
     actionUpdate() {
         this.disableButton('update');
 
-        let attributes = {};
-        let actions = {};
+        const attributes = {};
+        const actions = {};
 
         this.addedFieldList.forEach(field => {
-            let action = this.fetchAction(field);
-            let itemAttributes = this.getFieldView(field).fetch();
+            const action = this.fetchAction(field);
+            const itemAttributes = this.getFieldView(field).fetch();
 
-            let itemActualAttributes = {};
+            const itemActualAttributes = {};
 
             this.getFieldManager()
                 .getEntityTypeFieldActualAttributeList(this.entityType, field)
@@ -264,7 +264,7 @@ class MassUpdateModalView extends ModalView {
         let notValid = false;
 
         this.addedFieldList.forEach(field => {
-            let view = this.getFieldView(field);
+            const view = this.getFieldView(field);
 
             notValid = view.validate() || notValid;
         });
@@ -328,7 +328,7 @@ class MassUpdateModalView extends ModalView {
             return this.ACTION_UPDATE;
         }
 
-        let $dropdown = this.$el.find('select.item-action[data-name="' + name + '"]');
+        const $dropdown = this.$el.find('select.item-action[data-name="' + name + '"]');
 
         return $dropdown.val() || this.ACTION_UPDATE;
     }