diff --git a/apps/web/vite.config.js b/apps/web/vite.config.js
index d1e1f60426e2ac65de56fff5db2f85bea87b68bb..61dd9edbbb16b669da701f3b30ab1c33049e8bf3 100644
--- a/apps/web/vite.config.js
+++ b/apps/web/vite.config.js
@@ -13,6 +13,9 @@ export default defineConfig({
         }),
         tailwindcss(),
     ],
+    optimizeDeps: {
+        include: ["@pierre/diffs", "@pierre/diffs/react", "@pierre/diffs/worker/worker.js"],
+    },
     define: {
         // In dev mode, tell the web app where the WebSocket server lives
         "import.meta.env.VITE_WS_URL": JSON.stringify(process.env.VITE_WS_URL ?? ""),
diff --git a/apps/web/vite.config.ts b/apps/web/vite.config.ts
index 6027d50e291dacc7246e667a1fd3b6148f77ac5c..eea4ea9476ebe6903a85a416224ca79bd3a68df9 100644
--- a/apps/web/vite.config.ts
+++ b/apps/web/vite.config.ts
@@ -15,6 +15,9 @@ export default defineConfig({
     }),
     tailwindcss(),
   ],
+  optimizeDeps: {
+    include: ["@pierre/diffs", "@pierre/diffs/react", "@pierre/diffs/worker/worker.js"],
+  },
   define: {
     // In dev mode, tell the web app where the WebSocket server lives
     "import.meta.env.VITE_WS_URL": JSON.stringify(process.env.VITE_WS_URL ?? ""),