diff --git a/HISTORY.md b/HISTORY.md
index ec7c82108b..a74fd1bdc4 100644
--- a/HISTORY.md
+++ b/HISTORY.md
@@ -1,5 +1,18 @@
 # History
 
+# 2024-08-27, 13.1.1
+
+- Fix security vulnerability in the CLI and web API allowing to call functions
+  `import`, `createUnit` and `reviver`, allowing to get access to the internal
+  math namespace and allowing arbitrary code execution. Thanks @StarlightPWN.
+- Fix security vulnerability: when overwriting a `rawArgs` function with a 
+  non-`rawArgs` function, it was still called with raw arguments. This was both
+  a functional issue and a security issue. Thanks @StarlightPWN.
+- Fix security vulnerability: ensure that `ObjectWrappingMap` cannot delete
+  unsafe properties. Thanks @StarlightPWN.
+- Fix: not being able to use methods and properties on arrays inside the
+  expression parser.
+
 # 2024-08-26, 13.1.0
 
 - Feat: support multiple inputs in function `map` (#3228, #3196). 
diff --git a/package-lock.json b/package-lock.json
index f956362711..e21d464583 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1,12 +1,12 @@
 {
   "name": "mathjs",
-  "version": "13.1.0",
+  "version": "13.1.1",
   "lockfileVersion": 3,
   "requires": true,
   "packages": {
     "": {
       "name": "mathjs",
-      "version": "13.1.0",
+      "version": "13.1.1",
       "license": "Apache-2.0",
       "dependencies": {
         "@babel/runtime": "^7.25.4",
diff --git a/package.json b/package.json
index 48dc88f245..676e77cbba 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "mathjs",
-  "version": "13.1.0",
+  "version": "13.1.1",
   "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 e0267fb78b..0bf7d27c0e 100644
--- a/src/version.js
+++ b/src/version.js
@@ -1,3 +1,3 @@
-export const version = '13.1.0'
+export const version = '13.1.1'
 // Note: This file is automatically generated when building math.js.
 // Changes made in this file will be overwritten.