diff --git a/composer.json b/composer.json
index 23bfd77..945c004 100644
--- a/composer.json
+++ b/composer.json
@@ -12,8 +12,7 @@
         "squizlabs/php_codesniffer": "3.*",
         "wp-coding-standards/wpcs": "dev-develop",
         "dealerdirect/phpcodesniffer-composer-installer": "^1.0.0",
-        "sirbrillig/phpcs-variable-analysis": "^2.11",
-        "yoast/phpunit-polyfill": "*"
+        "sirbrillig/phpcs-variable-analysis": "^2.11"
     },
     "config": {
         "allow-plugins": true