diff --git a/package.json b/package.json
index ceb8d935..084e4f1a 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "setup-graphviz",
-  "version": "1.2.0",
+  "version": "2.0.0",
   "author": "kamiazya <yuki@kamiazya.tech>",
   "description": "Setup a graphviz environment.",
   "private": true,