diff --git a/npm/packages/rudag/src/index.ts b/npm/packages/rudag/src/index.ts
index 5af27a31a..cc765ac22 100644
--- a/npm/packages/rudag/src/index.ts
+++ b/npm/packages/rudag/src/index.ts
@@ -13,7 +13,7 @@ export {
   type DagEdge,
   type CriticalPath,
   type RuDagOptions,
-} from './dag';
+} from './dag.js';
 
 export {
   DagStorage,
@@ -22,7 +22,7 @@ export {
   isIndexedDBAvailable,
   type StoredDag,
   type DagStorageOptions,
-} from './storage';
+} from './storage.js';
 
 // Version info
 export const VERSION = '0.1.0';
diff --git a/npm/packages/rudag/src/node.ts b/npm/packages/rudag/src/node.ts
index e72aeee0e..c805a8cbb 100644
--- a/npm/packages/rudag/src/node.ts
+++ b/npm/packages/rudag/src/node.ts
@@ -4,9 +4,9 @@
  * @security Path traversal prevention via ID validation
  */
 
-export * from './index';
+export * from './index.js';
 
-import { RuDag, MemoryStorage } from './index';
+import { RuDag, MemoryStorage } from './index.js';
 import { promises as fs } from 'fs';
 import { join, normalize, resolve } from 'path';