diff --git a/package.json b/package.json
index 76f80da..3c41f2d 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "parson",
-  "version": "0.0.0",
+  "version": "1.0.0",
   "repo": "kgabis/parson",
   "description": "Small json parser and reader",
   "keywords": [ "json", "parser" ],
diff --git a/parson.c b/parson.c
index a7a844a..e065e19 100644
--- a/parson.c
+++ b/parson.c
@@ -1,7 +1,7 @@
 /*
  SPDX-License-Identifier: MIT
 
- Parson ( http://kgabis.github.com/parson/ )
+ Parson 1.0.0 ( http://kgabis.github.com/parson/ )
  Copyright (c) 2012 - 2019 Krzysztof Gabis
 
  Permission is hereby granted, free of charge, to any person obtaining a copy
diff --git a/parson.h b/parson.h
index 186fcb0..8d36860 100644
--- a/parson.h
+++ b/parson.h
@@ -1,7 +1,7 @@
 /*
  SPDX-License-Identifier: MIT
 
- Parson ( http://kgabis.github.com/parson/ )
+ Parson 1.0.0 ( http://kgabis.github.com/parson/ )
  Copyright (c) 2012 - 2019 Krzysztof Gabis
 
  Permission is hereby granted, free of charge, to any person obtaining a copy