diff --git a/History.md b/History.md
index 72a62c2..3ce381d 100644
--- a/History.md
+++ b/History.md
@@ -1,5 +1,5 @@
-Unpublished
-===========
+6.0.0 - Apr 23 2020
+===================
 
   * document the potential of EPERM errors when invoking write methods (fixes [#167](https://github.com/fivdi/onoff/issues/167))
   * drop support for node.js 6, add support for node.js 14
diff --git a/package.json b/package.json
index d3556be..5222187 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "onoff",
-  "version": "5.0.1",
+  "version": "6.0.0",
   "description": "GPIO access and interrupt detection with Node.js",
   "main": "onoff.js",
   "types": "onoff.d.ts",