diff --git a/packages/turndown-plugin-gfm/src/gfm.js b/packages/turndown-plugin-gfm/src/gfm.js
index 69d25b4b7..826b50659 100644
--- a/packages/turndown-plugin-gfm/src/gfm.js
+++ b/packages/turndown-plugin-gfm/src/gfm.js
@@ -1,7 +1,7 @@
-import highlightedCodeBlock from './highlighted-code-block'
-import strikethrough from './strikethrough'
-import tables from './tables'
-import taskListItems from './task-list-items'
+import highlightedCodeBlock from './highlighted-code-block.js'
+import strikethrough from './strikethrough.js'
+import tables from './tables.js'
+import taskListItems from './task-list-items.js'
 
 function gfm (turndownService) {
   turndownService.use([