diff --git a/composer.json b/composer.json
index 32d00ce42f5de81f325365edbeb7338f1c3e7283..28dd113942098e112383b8988dbb6f7679bdea60 100644
--- a/composer.json
+++ b/composer.json
@@ -34,8 +34,8 @@
     "irstea/phpstan-config": "^1.0",
     "jakub-onderka/php-parallel-lint": "^1.0",
     "maglnet/composer-require-checker": "^2.0",
-    "phploc/phploc": "^5.0",
-    "phpunit/phpunit": "^8.1",
+    "phploc/phploc": "^4.0",
+    "phpunit/phpunit": "^7.5",
     "roave/security-advisories": "dev-master",
     "sebastian/phpcpd": "^4.1",
     "sensiolabs/security-checker": "^5.0"