diff --git a/src/parser.ts b/src/parser.ts
index f49a895c01f1e4289ec0352d83e213842ba63ba4..2dda3cad8cde4a4f3aad3327a5c9fac9f0903b08 100644
--- a/src/parser.ts
+++ b/src/parser.ts
@@ -1 +1 @@
-import coreParser from './coreParser';
+const coreParser = require('./coreParser.js');