diff --git a/package-lock.json b/package-lock.json
index 9bf8010f6..36058c4c5 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -18601,6 +18601,10 @@
     },
     "storybook": {
       "name": "@osrd-project/storybook",
+      "dependencies": {
+        "@osrd-project/ui-core": "0.0.1-dev",
+        "@osrd-project/ui-trackoccupancydiagram": "0.0.1-dev"
+      },
       "devDependencies": {
         "@chromatic-com/storybook": "^3.2.0",
         "@storybook/addon-essentials": "^8.0.2",
diff --git a/storybook/package.json b/storybook/package.json
index 2386fd211..3e858e8c9 100644
--- a/storybook/package.json
+++ b/storybook/package.json
@@ -19,5 +19,9 @@
     "clean": "rimraf storybook-static",
     "start": "storybook dev -p 6006",
     "build": "storybook build"
+  },
+  "dependencies": {
+    "@osrd-project/ui-core": "0.0.1-dev",
+    "@osrd-project/ui-trackoccupancydiagram": "0.0.1-dev"
   }
 }
diff --git a/storybook/stories/TrackOccupancyDiagram/TrackOccupancyDiagram.stories.tsx b/storybook/stories/TrackOccupancyDiagram/TrackOccupancyDiagram.stories.tsx
index d497e6564..58c9a69e1 100755
--- a/storybook/stories/TrackOccupancyDiagram/TrackOccupancyDiagram.stories.tsx
+++ b/storybook/stories/TrackOccupancyDiagram/TrackOccupancyDiagram.stories.tsx
@@ -37,6 +37,9 @@ import {
 import occupancyZones from '../samples/TrackOccupancyDiagramSamples/occupancyZones';
 import tracks from '../samples/TrackOccupancyDiagramSamples/tracks';
 
+import '@osrd-project/ui-core/dist/theme.css';
+import '@osrd-project/ui-trackoccupancydiagram/dist/theme.css';
+
 type TrackOccupancyDiagramProps = {
   xZoomLevel: number;
   yZoomLevel: number;
diff --git a/ui-core/src/index.ts b/ui-core/src/index.ts
index 52d0e3202..7ede4bff3 100644
--- a/ui-core/src/index.ts
+++ b/ui-core/src/index.ts
@@ -1,5 +1,3 @@
-import './styles/main.css';
-
 export { default as Button, ButtonProps } from './components/buttons/Button';
 export {
   default as ComboBox,
diff --git a/ui-manchette-with-spacetimechart/src/index.ts b/ui-manchette-with-spacetimechart/src/index.ts
index 680a312ae..1b17b48dc 100644
--- a/ui-manchette-with-spacetimechart/src/index.ts
+++ b/ui-manchette-with-spacetimechart/src/index.ts
@@ -1,5 +1,3 @@
-import './styles/main.css';
-
 export { default as useManchettesWithSpaceTimeChart } from './hooks/useManchetteWithSpaceTimeChart';
 export { DEFAULT_ZOOM_MS_PER_PX } from './consts';
 export { timeScaleToZoomValue } from './helpers';
diff --git a/ui-manchette/src/components/Waypoint.tsx b/ui-manchette/src/components/Waypoint.tsx
index eb91ca958..516436cb9 100644
--- a/ui-manchette/src/components/Waypoint.tsx
+++ b/ui-manchette/src/components/Waypoint.tsx
@@ -3,7 +3,6 @@ import React from 'react';
 import cx from 'classnames';
 
 import { type InteractiveWaypoint } from '../types';
-import '@osrd-project/ui-core/dist/theme.css';
 import { positionMmToKm } from '../utils';
 
 type WaypointProps = {
diff --git a/ui-manchette/src/index.ts b/ui-manchette/src/index.ts
index 015b9a2ef..5bb3bef52 100644
--- a/ui-manchette/src/index.ts
+++ b/ui-manchette/src/index.ts
@@ -1,5 +1,3 @@
-import '@osrd-project/ui-core/dist/theme.css';
-import './styles/main.css';
 import './components/consts';
 
 import Manchette from './components/Manchette';
diff --git a/ui-spacetimechart/src/index.ts b/ui-spacetimechart/src/index.ts
index ab79245f3..fec28fe77 100644
--- a/ui-spacetimechart/src/index.ts
+++ b/ui-spacetimechart/src/index.ts
@@ -1,5 +1,3 @@
-import './styles/main.css';
-
 export type { HoveredItem, SpaceTimeChartProps } from './lib/types';
 
 export * from './components/SpaceTimeChart';
diff --git a/ui-speedspacechart/src/index.ts b/ui-speedspacechart/src/index.ts
index 1306b14e4..bed201dff 100644
--- a/ui-speedspacechart/src/index.ts
+++ b/ui-speedspacechart/src/index.ts
@@ -1,4 +1 @@
-import '@osrd-project/ui-core/dist/theme.css';
-import './styles/main.css';
-
 export { default as SpeedSpaceChart } from './components/SpeedSpaceChart';
diff --git a/ui-trackoccupancydiagram/src/index.ts b/ui-trackoccupancydiagram/src/index.ts
index 32bfef2f5..6b03034d4 100644
--- a/ui-trackoccupancydiagram/src/index.ts
+++ b/ui-trackoccupancydiagram/src/index.ts
@@ -1,5 +1,2 @@
-import '@osrd-project/ui-core/dist/theme.css';
-import './styles/main.css';
-
 export { default as TrackOccupancyCanvas } from './components/TrackOccupancyCanvas';
 export { default as TrackOccupancyManchette } from './components/TrackOccupancyManchette';