diff --git a/composer.json b/composer.json
index aba7f41..0d2c791 100644
--- a/composer.json
+++ b/composer.json
@@ -23,10 +23,9 @@
   },
   "require-dev": {
     "composer/installers": "1.9.0",
-    "phpunit/phpunit": "^11.5.0",
-    "yoast/phpunit-polyfills": "^3.0.0",
-    "woocommerce/woocommerce-sniffs": "^1.0.0",
-    "phpunit/php-code-coverage": "^11.0.7"
+    "phpunit/phpunit": "^9.6.22",
+    "yoast/phpunit-polyfills": "^1.1.3",
+    "woocommerce/woocommerce-sniffs": "^1.0.0"
   },
   "config": {
     "allow-plugins": {