diff --git a/HISTORY.md b/HISTORY.md
index 29c18225b..3790253bd 100644
--- a/HISTORY.md
+++ b/HISTORY.md
@@ -1,6 +1,11 @@
 # History
 
 
+# 2020-04-15, version 6.6.4
+
+- Fix published files containing Windows line endings (CRLF instead of LF).  
+
+
 # 2020-04-10, version 6.6.3
 
 - Fix #1813: bug in engineering notation for numbers of function `format`,
diff --git a/package-lock.json b/package-lock.json
index b56bb43f6..74f28d4d9 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1,6 +1,6 @@
 {
   "name": "mathjs",
-  "version": "6.6.3",
+  "version": "6.6.4",
   "lockfileVersion": 1,
   "requires": true,
   "dependencies": {
diff --git a/package.json b/package.json
index 8913d371c..fd267a94f 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "mathjs",
-  "version": "6.6.3",
+  "version": "6.6.4",
   "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)",
   "homepage": "https://mathjs.org",
diff --git a/src/version.js b/src/version.js
index 2bec22f16..6eca3fe7f 100644
--- a/src/version.js
+++ b/src/version.js
@@ -1,3 +1,3 @@
-export const version = '6.6.3'
+export const version = '6.6.4'
 // Note: This file is automatically generated when building math.js.
 // Changes made in this file will be overwritten.