diff --git a/admin/app/services/kiwix_library_service.ts b/admin/app/services/kiwix_library_service.ts
index c7aeabd..4b6de99 100644
--- a/admin/app/services/kiwix_library_service.ts
+++ b/admin/app/services/kiwix_library_service.ts
@@ -1,7 +1,7 @@
 import { XMLBuilder, XMLParser } from 'fast-xml-parser'
 import { readFile, writeFile, rename, readdir } from 'fs/promises'
 import { join } from 'path'
-import { Archive } from '@openzim/libzim'
+import type { Archive as ZimArchive } from '@openzim/libzim'
 import { KIWIX_LIBRARY_XML_PATH, ZIM_STORAGE_PATH, ensureDirectoryExists, isValidZimFile } from '../utils/fs.js'
 import logger from '@adonisjs/core/services/logger'
 import { randomUUID } from 'node:crypto'
@@ -9,6 +9,11 @@ import { randomUUID } from 'node:crypto'
 const CONTAINER_DATA_PATH = '/data'
 const XML_DECLARATION = '<?xml version="1.0" encoding="UTF-8"?>\n'
 
+async function loadArchiveClass(): Promise<typeof import('@openzim/libzim').Archive> {
+  const { Archive } = await import('@openzim/libzim')
+  return Archive
+}
+
 interface KiwixBook {
   id: string
   path: string
@@ -60,7 +65,8 @@ export class KiwixLibraryService {
         logger.warn(`[KiwixLibraryService] Skipping invalid/corrupted ZIM file: ${zimFilePath}`)
         return null
       }
-      const archive = new Archive(zimFilePath)
+      const Archive = await loadArchiveClass()
+      const archive: ZimArchive = new Archive(zimFilePath)
 
       const getMeta = (key: string): string | undefined => {
         try {
diff --git a/admin/app/services/zim_extraction_service.ts b/admin/app/services/zim_extraction_service.ts
index 196add9..dc7eaab 100644
--- a/admin/app/services/zim_extraction_service.ts
+++ b/admin/app/services/zim_extraction_service.ts
@@ -1,4 +1,4 @@
-import { Archive, Entry } from '@openzim/libzim'
+import type { Archive as ZimArchive, Entry } from '@openzim/libzim'
 import * as cheerio from 'cheerio'
 import { HTML_SELECTORS_TO_REMOVE, NON_CONTENT_HEADING_PATTERNS } from '../../constants/zim_extraction.js'
 import logger from '@adonisjs/core/services/logger'
@@ -7,9 +7,14 @@ import { randomUUID } from 'node:crypto'
 import { access } from 'node:fs/promises'
 import { isValidZimFile } from '../utils/fs.js'
 
+async function loadArchiveClass(): Promise<typeof import('@openzim/libzim').Archive> {
+    const { Archive } = await import('@openzim/libzim')
+    return Archive
+}
+
 export class ZIMExtractionService {
 
-    private extractArchiveMetadata(archive: Archive): ZIMArchiveMetadata {
+    private extractArchiveMetadata(archive: ZimArchive): ZIMArchiveMetadata {
         try {
             return {
                 title: archive.getMetadata('Title') || archive.getMetadata('Name') || 'Unknown',
@@ -62,7 +67,8 @@ export class ZIMExtractionService {
                 throw new Error(`ZIM file is invalid or corrupted: ${filePath}`)
             }
 
-            const archive = new Archive(filePath)
+            const Archive = await loadArchiveClass()
+            const archive: ZimArchive = new Archive(filePath)
 
             // Extract archive-level metadata once
             const archiveMetadata = this.extractArchiveMetadata(archive)