diff --git a/composer.json b/composer.json
index 19e952c..7824ff3 100644
--- a/composer.json
+++ b/composer.json
@@ -7,6 +7,7 @@
         "league/flysystem-azure-blob-storage": "^3.0"
     },
     "require-dev": {
+        "infection/infection": "^0.26.11",
         "mockery/mockery": "^1.4",
         "orchestra/testbench": "^7.0",
         "php-coveralls/php-coveralls": "^2.1",
@@ -44,7 +45,8 @@
     "config": {
         "sort-packages": true,
         "allow-plugins": {
-            "dealerdirect/phpcodesniffer-composer-installer": true
+            "dealerdirect/phpcodesniffer-composer-installer": true,
+            "infection/extension-installer": true
         }
     }