diff --git a/js/package.json b/js/package.json
index 4eec27025a..7e187981eb 100644
--- a/js/package.json
+++ b/js/package.json
@@ -3,6 +3,6 @@
     "version": "0.0.1",
     "description": "Make a Lisp (mal) language implemented in Javascript",
     "dependencies": {
-        "ffi": "2.0.x"
+        "ffi": "2.3.0"
     }
 }