diff --git a/packages/core/client/src/schema-component/antd/gantt/components/calendar/calendar.module.css b/packages/core/client/src/schema-component/antd/gantt/components/calendar/calendar.less
similarity index 100%
rename from packages/core/client/src/schema-component/antd/gantt/components/calendar/calendar.module.css
rename to packages/core/client/src/schema-component/antd/gantt/components/calendar/calendar.less
diff --git a/packages/core/client/src/schema-component/antd/gantt/components/calendar/calendar.tsx b/packages/core/client/src/schema-component/antd/gantt/components/calendar/calendar.tsx
index 86f637bb22..8022e5ead8 100644
--- a/packages/core/client/src/schema-component/antd/gantt/components/calendar/calendar.tsx
+++ b/packages/core/client/src/schema-component/antd/gantt/components/calendar/calendar.tsx
@@ -9,7 +9,7 @@ import {
   getWeekNumberISO8601,
 } from '../../helpers/date-helper';
 import { DateSetup } from '../../types/date-setup';
-import styles from './calendar.module.css';
+import styles from './calendar.less';
 
 export type CalendarProps = {
   dateSetup: DateSetup;
diff --git a/packages/core/client/src/schema-component/antd/gantt/components/calendar/top-part-of-calendar.tsx b/packages/core/client/src/schema-component/antd/gantt/components/calendar/top-part-of-calendar.tsx
index d24f376a3d..1a9b176deb 100644
--- a/packages/core/client/src/schema-component/antd/gantt/components/calendar/top-part-of-calendar.tsx
+++ b/packages/core/client/src/schema-component/antd/gantt/components/calendar/top-part-of-calendar.tsx
@@ -1,5 +1,5 @@
 import React from "react";
-import styles from "./calendar.module.css";
+import styles from "./calendar.less";
 
 type TopPartOfCalendarProps = {
   value: string;
diff --git a/packages/core/client/src/schema-component/antd/gantt/components/gantt/gantt.module.css b/packages/core/client/src/schema-component/antd/gantt/components/gantt/gantt.less
similarity index 100%
rename from packages/core/client/src/schema-component/antd/gantt/components/gantt/gantt.module.css
rename to packages/core/client/src/schema-component/antd/gantt/components/gantt/gantt.less
diff --git a/packages/core/client/src/schema-component/antd/gantt/components/gantt/gantt.tsx b/packages/core/client/src/schema-component/antd/gantt/components/gantt/gantt.tsx
index ec7308c01c..454837185f 100644
--- a/packages/core/client/src/schema-component/antd/gantt/components/gantt/gantt.tsx
+++ b/packages/core/client/src/schema-component/antd/gantt/components/gantt/gantt.tsx
@@ -14,7 +14,7 @@ import { GanttEvent } from '../../types/gantt-task-actions';
 import { DateSetup } from '../../types/date-setup';
 import { HorizontalScroll } from '../other/horizontal-scroll';
 import { removeHiddenTasks, sortTasks } from '../../helpers/other-helper';
-import styles from './gantt.module.css';
+import styles from './gantt.less';
 import { GanttToolbarContext } from '../../context';
 import { useDesignable } from '../../../../../schema-component';
 import { TableBlockProvider, useGanttBlockContext, useBlockRequestContext } from '../../../../../block-provider';
diff --git a/packages/core/client/src/schema-component/antd/gantt/components/gantt/task-gantt.tsx b/packages/core/client/src/schema-component/antd/gantt/components/gantt/task-gantt.tsx
index de434e7f57..0b104a6d1c 100644
--- a/packages/core/client/src/schema-component/antd/gantt/components/gantt/task-gantt.tsx
+++ b/packages/core/client/src/schema-component/antd/gantt/components/gantt/task-gantt.tsx
@@ -2,7 +2,7 @@ import React, { useRef, useEffect, forwardRef } from 'react';
 import { GridProps, Grid } from '../grid/grid';
 import { CalendarProps, Calendar } from '../calendar/calendar';
 import { TaskGanttContentProps, TaskGanttContent } from './task-gantt-content';
-import styles from './gantt.module.css';
+import styles from './gantt.less';
 
 export type TaskGanttProps = {
   gridProps: GridProps;
diff --git a/packages/core/client/src/schema-component/antd/gantt/components/grid/grid-body.tsx b/packages/core/client/src/schema-component/antd/gantt/components/grid/grid-body.tsx
index 18e6f2b00d..b25464e147 100644
--- a/packages/core/client/src/schema-component/antd/gantt/components/grid/grid-body.tsx
+++ b/packages/core/client/src/schema-component/antd/gantt/components/grid/grid-body.tsx
@@ -1,7 +1,7 @@
 import React, { ReactChild } from "react";
 import { Task } from "../../types/public-types";
 import { addToDate } from "../../helpers/date-helper";
-import styles from "./grid.module.css";
+import styles from "./grid.less";
 
 export type GridBodyProps = {
   tasks: Task[];
diff --git a/packages/core/client/src/schema-component/antd/gantt/components/grid/grid.module.css b/packages/core/client/src/schema-component/antd/gantt/components/grid/grid.less
similarity index 100%
rename from packages/core/client/src/schema-component/antd/gantt/components/grid/grid.module.css
rename to packages/core/client/src/schema-component/antd/gantt/components/grid/grid.less
diff --git a/packages/core/client/src/schema-component/antd/gantt/components/task-item/bar/bar-date-handle.tsx b/packages/core/client/src/schema-component/antd/gantt/components/task-item/bar/bar-date-handle.tsx
index 3794239578..45197d4d09 100644
--- a/packages/core/client/src/schema-component/antd/gantt/components/task-item/bar/bar-date-handle.tsx
+++ b/packages/core/client/src/schema-component/antd/gantt/components/task-item/bar/bar-date-handle.tsx
@@ -1,5 +1,5 @@
 import React from "react";
-import styles from "./bar.module.css";
+import styles from "./bar.less";
 
 type BarDateHandleProps = {
   x: number;
diff --git a/packages/core/client/src/schema-component/antd/gantt/components/task-item/bar/bar-display.tsx b/packages/core/client/src/schema-component/antd/gantt/components/task-item/bar/bar-display.tsx
index 174e1ed177..04ef7b6d41 100644
--- a/packages/core/client/src/schema-component/antd/gantt/components/task-item/bar/bar-display.tsx
+++ b/packages/core/client/src/schema-component/antd/gantt/components/task-item/bar/bar-display.tsx
@@ -1,5 +1,5 @@
 import React from "react";
-import style from "./bar.module.css";
+import style from "./bar.less";
 
 type BarDisplayProps = {
   x: number;
diff --git a/packages/core/client/src/schema-component/antd/gantt/components/task-item/bar/bar-progress-handle.tsx b/packages/core/client/src/schema-component/antd/gantt/components/task-item/bar/bar-progress-handle.tsx
index 75168b4662..f0a7173370 100644
--- a/packages/core/client/src/schema-component/antd/gantt/components/task-item/bar/bar-progress-handle.tsx
+++ b/packages/core/client/src/schema-component/antd/gantt/components/task-item/bar/bar-progress-handle.tsx
@@ -1,5 +1,5 @@
 import React from "react";
-import styles from "./bar.module.css";
+import styles from "./bar.less";
 
 type BarProgressHandleProps = {
   progressPoint: string;
diff --git a/packages/core/client/src/schema-component/antd/gantt/components/task-item/bar/bar-small.tsx b/packages/core/client/src/schema-component/antd/gantt/components/task-item/bar/bar-small.tsx
index 56f43432fe..8129c898b5 100644
--- a/packages/core/client/src/schema-component/antd/gantt/components/task-item/bar/bar-small.tsx
+++ b/packages/core/client/src/schema-component/antd/gantt/components/task-item/bar/bar-small.tsx
@@ -3,7 +3,7 @@ import { getProgressPoint } from "../../../helpers/bar-helper";
 import { BarDisplay } from "./bar-display";
 import { BarProgressHandle } from "./bar-progress-handle";
 import { TaskItemProps } from "../task-item";
-import styles from "./bar.module.css";
+import styles from "./bar.less";
 
 export const BarSmall: React.FC<TaskItemProps> = ({
   task,
diff --git a/packages/core/client/src/schema-component/antd/gantt/components/task-item/bar/bar.module.css b/packages/core/client/src/schema-component/antd/gantt/components/task-item/bar/bar.less
similarity index 100%
rename from packages/core/client/src/schema-component/antd/gantt/components/task-item/bar/bar.module.css
rename to packages/core/client/src/schema-component/antd/gantt/components/task-item/bar/bar.less
diff --git a/packages/core/client/src/schema-component/antd/gantt/components/task-item/bar/bar.tsx b/packages/core/client/src/schema-component/antd/gantt/components/task-item/bar/bar.tsx
index 7e6ce5b960..5648b30efd 100644
--- a/packages/core/client/src/schema-component/antd/gantt/components/task-item/bar/bar.tsx
+++ b/packages/core/client/src/schema-component/antd/gantt/components/task-item/bar/bar.tsx
@@ -4,7 +4,7 @@ import { BarDisplay } from "./bar-display";
 import { BarDateHandle } from "./bar-date-handle";
 import { BarProgressHandle } from "./bar-progress-handle";
 import { TaskItemProps } from "../task-item";
-import styles from "./bar.module.css";
+import styles from "./bar.less";
 
 export const Bar: React.FC<TaskItemProps> = ({
   task,
diff --git a/packages/core/client/src/schema-component/antd/gantt/components/task-item/milestone/milestone.module.css b/packages/core/client/src/schema-component/antd/gantt/components/task-item/milestone/milestone.less
similarity index 100%
rename from packages/core/client/src/schema-component/antd/gantt/components/task-item/milestone/milestone.module.css
rename to packages/core/client/src/schema-component/antd/gantt/components/task-item/milestone/milestone.less
diff --git a/packages/core/client/src/schema-component/antd/gantt/components/task-item/milestone/milestone.tsx b/packages/core/client/src/schema-component/antd/gantt/components/task-item/milestone/milestone.tsx
index a8e3922cef..c0f0ba6a24 100644
--- a/packages/core/client/src/schema-component/antd/gantt/components/task-item/milestone/milestone.tsx
+++ b/packages/core/client/src/schema-component/antd/gantt/components/task-item/milestone/milestone.tsx
@@ -1,6 +1,6 @@
 import React from "react";
 import { TaskItemProps } from "../task-item";
-import styles from "./milestone.module.css";
+import styles from "./milestone.less";
 
 export const Milestone: React.FC<TaskItemProps> = ({
   task,
diff --git a/packages/core/client/src/schema-component/antd/gantt/components/task-item/project/project.module.css b/packages/core/client/src/schema-component/antd/gantt/components/task-item/project/project.less
similarity index 100%
rename from packages/core/client/src/schema-component/antd/gantt/components/task-item/project/project.module.css
rename to packages/core/client/src/schema-component/antd/gantt/components/task-item/project/project.less
diff --git a/packages/core/client/src/schema-component/antd/gantt/components/task-item/project/project.tsx b/packages/core/client/src/schema-component/antd/gantt/components/task-item/project/project.tsx
index 5a47ba90bd..f0b0f13c83 100644
--- a/packages/core/client/src/schema-component/antd/gantt/components/task-item/project/project.tsx
+++ b/packages/core/client/src/schema-component/antd/gantt/components/task-item/project/project.tsx
@@ -1,6 +1,6 @@
 import React from "react";
 import { TaskItemProps } from "../task-item";
-import styles from "./project.module.css";
+import styles from "./project.less";
 
 export const Project: React.FC<TaskItemProps> = ({ task, isSelected }) => {
   const barColor = isSelected
diff --git a/packages/core/client/src/schema-component/antd/gantt/components/task-item/task-item.tsx b/packages/core/client/src/schema-component/antd/gantt/components/task-item/task-item.tsx
index cf06284986..a2d5fea8b6 100644
--- a/packages/core/client/src/schema-component/antd/gantt/components/task-item/task-item.tsx
+++ b/packages/core/client/src/schema-component/antd/gantt/components/task-item/task-item.tsx
@@ -5,7 +5,7 @@ import { Bar } from "./bar/bar";
 import { BarSmall } from "./bar/bar-small";
 import { Milestone } from "./milestone/milestone";
 import { Project } from "./project/project";
-import style from "./task-list.module.css";
+import style from "./task-list.less";
 
 export type TaskItemProps = {
   task: BarTask;
diff --git a/packages/core/client/src/schema-component/antd/gantt/components/task-item/task-list.module.css b/packages/core/client/src/schema-component/antd/gantt/components/task-item/task-list.less
similarity index 100%
rename from packages/core/client/src/schema-component/antd/gantt/components/task-item/task-list.module.css
rename to packages/core/client/src/schema-component/antd/gantt/components/task-item/task-list.less