diff --git a/HISTORY.md b/HISTORY.md
index 43051d3038..6b4e377cf3 100644
--- a/HISTORY.md
+++ b/HISTORY.md
@@ -1,7 +1,7 @@
 # History
 
 
-# not yet released, version 5.9.0
+# 2018-04-08, version 5.9.0
 
 - Implemented functions `row` and `column` (see #1413). Thanks @SzechuanSage.
 - Fixed #1459: `engineering` notation of function `format` not available
@@ -9,6 +9,7 @@
 - Fixed #1465: `node.toHTML()` not correct for unary operators like
   `factorial`.
 
+
 # 2019-03-20, version 5.8.0
 
 - Implemented new function `apply`. Thanks @bnlcas.
diff --git a/package-lock.json b/package-lock.json
index 497417e078..a99aaf23de 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1,6 +1,6 @@
 {
   "name": "mathjs",
-  "version": "5.8.0",
+  "version": "5.9.0",
   "lockfileVersion": 1,
   "requires": true,
   "dependencies": {
diff --git a/package.json b/package.json
index 67d154f1fa..7fcbfae2b7 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "mathjs",
-  "version": "5.8.0",
+  "version": "5.9.0",
   "description": "Math.js is an extensive math library for JavaScript and Node.js. It features a flexible expression parser with support for symbolic computation, comes with a large set of built-in functions and constants, and offers an integrated solution to work with different data types like numbers, big numbers, complex numbers, fractions, units, and matrices.",
   "author": "Jos de Jong <wjosdejong@gmail.com> (https://github.com/josdejong)",
   "contributors": [
diff --git a/src/version.js b/src/version.js
index 23843a5bcf..561258876a 100644
--- a/src/version.js
+++ b/src/version.js
@@ -1,3 +1,3 @@
-module.exports = '5.8.0'
+module.exports = '5.9.0'
 // Note: This file is automatically generated when building math.js.
 // Changes made in this file will be overwritten.