diff --git a/package.json b/package.json
index 9334162..685f666 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "micromark-extension-gfm",
-  "version": "0.3.3",
+  "version": "1.0.0",
   "description": "micromark extension to support GFM (GitHub Flavored Markdown)",
   "license": "MIT",
   "keywords": [