diff --git a/composer.json b/composer.json
index 6cdeb11..8336bc3 100644
--- a/composer.json
+++ b/composer.json
@@ -36,7 +36,7 @@
     "require-dev": {
         "composer/composer": "^2",
         "phpunit/phpunit": "^8.5.18",
-        "mockery/mockery": "^1.4.3",
+        "mockery/mockery": "^1.3.4",
         "inpsyde/php-coding-standards": "^1@dev",
         "vimeo/psalm": ">=4.8.1@stable",
         "mikey179/vfsstream": "^1.6.9"