diff --git a/composer.json b/composer.json
index fae4ca9bda9f61a07ec39a170d7068fad93ff531..0451a5993377a855f2e1026661b40f92bf159719 100644
--- a/composer.json
+++ b/composer.json
@@ -17,9 +17,8 @@
   },
   "require-dev": {
     "composer/composer": "^1|^2",
-    "phpunit/phpunit": "<7",
-    "mockery/mockery": "^1.2",
-    "10up/wp_mock": "^0.3"
+    "10up/wp_mock": "0.3",
+    "phpunit/phpunit": "<7"
   },
   "autoload": {
     "psr-4": {