diff --git a/package.json b/package.json
index e9d6419..2937ea0 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "remark-heading-gap",
-  "version": "1.0.0",
+  "version": "2.0.0",
   "description": "Adjust the gap between headings.",
   "main": "dist/index.js",
   "files": [