diff --git a/composer.json b/composer.json
index 1920e8b..f3e87cb 100644
--- a/composer.json
+++ b/composer.json
@@ -27,10 +27,9 @@
     "require": {
         "php": ">=5.3.7",
         "jeremykendall/password-validator": "3.*",
-        "wp-cli/php-cli-tools": "~0.10",
-        "zendframework/zend-authentication": "2.*",
-        "zendframework/zend-permissions-acl": "2.*",
-        "zendframework/zend-session": "2.*"
+        "zendframework/zend-authentication": "2.5.1",
+        "zendframework/zend-permissions-acl": "2.5.1",
+        "zendframework/zend-session": "2.5.1"
     },
     "require-dev": {
         "league/phpunit-coverage-listener": "~1.1",