diff --git a/htdocs/includes/markrogoyski/math-php/composer.json b/htdocs/includes/markrogoyski/math-php/composer.json
index fb937419c4c..286b356efdf 100644
--- a/htdocs/includes/markrogoyski/math-php/composer.json
+++ b/htdocs/includes/markrogoyski/math-php/composer.json
@@ -11,15 +11,6 @@
   "autoload": {
     "psr-4": { "MathPHP\\": "src/" }
   },
-  "require-dev": {
-      "phpunit/phpunit": "^8.5",
-      "php-coveralls/php-coveralls": "^2.0",
-      "squizlabs/php_codesniffer": "3.*",
-      "phpstan/phpstan": "^1.10",
-      "phpmd/phpmd": "^2.6",
-      "phploc/phploc": "*",
-      "php-parallel-lint/php-parallel-lint": "^1.2"
-  },
   "authors": [
     {
       "name": "Mark Rogoyski",