diff --git a/back/package.json b/back/package.json
index b3b7689..a48fcac 100644
--- a/back/package.json
+++ b/back/package.json
@@ -29,6 +29,7 @@
     "class-validator": "^0.14.0",
     "class-transformer": "^0.5.0",
     "@asyncapi/cli": "6.0.0",
+    "@asyncapi/bundler": "0.9.0",
     "@asyncapi/generator": "3.0.1",
     "@asyncapi/html-template": "3.5.6",
     "@redocly/cli": "latest"
diff --git a/back/src/modules/uploads/uploads.controller.ts b/back/src/modules/uploads/uploads.controller.ts
index 2a6a176..c00d78b 100644
--- a/back/src/modules/uploads/uploads.controller.ts
+++ b/back/src/modules/uploads/uploads.controller.ts
@@ -15,6 +15,8 @@ import * as os from 'os';
 import { execFile } from 'child_process';
 import { promisify } from 'util';
 import { randomUUID } from 'crypto';
+// eslint-disable-next-line @typescript-eslint/no-require-imports
+const asyncapiBundle = require('@asyncapi/bundler');
 
 const execFileAsync = promisify(execFile);
 const localBin = path.join(process.cwd(), 'node_modules', '.bin');
@@ -152,12 +154,15 @@ export class UploadsController {
       const mainPath = path.join(tempDir, mainFile.originalname);
 
       if (type === 'OPENAPI') {
+        /* redocly bundle : pas d'appel réseau, fonctionne en local */
         await execFileAsync('redocly', ['bundle', mainPath, '--output', bundledPath], { shell: true, env: execEnv });
+        return await fsPromises.readFile(bundledPath, 'utf-8');
       } else {
-        await execFileAsync('asyncapi', ['bundle', mainPath, '--output', bundledPath], { shell: true, env: execEnv });
+        /* @asyncapi/bundler API programmatique : aucun appel réseau */
+        const bundleFn = asyncapiBundle.default ?? asyncapiBundle;
+        const document = await bundleFn([mainPath], { base: mainPath });
+        return document.string();
       }
-
-      return await fsPromises.readFile(bundledPath, 'utf-8');
     } finally {
       /* Nettoyage du répertoire temp même en cas d'erreur */
       await fsPromises.rm(tempDir, { recursive: true, force: true }).catch(() => undefined);