diff --git a/package.json b/package.json
index 8c95e75..9589785 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "io-ts-promise",
-  "version": "0.1.0",
+  "version": "1.0.0",
   "description": "io-ts for developers who like Promises",
   "keywords": [
     "io-ts",