diff --git a/packages/core/vite.config.ts b/packages/core/vite.config.ts
index 682434111..380b3a0ab 100644
--- a/packages/core/vite.config.ts
+++ b/packages/core/vite.config.ts
@@ -27,7 +27,7 @@ export default defineConfig({
         if (deps.includes(source)) {
           return true;
         }
-        return source.startsWith("prosemirror-");
+        return source.startsWith("prosemirror-") || source.startsWith("shiki/");
       },
       output: {
         // Provide global variables to use in the UMD build