diff --git a/composer.json b/composer.json
index aec2fe5d..4fa50629 100644
--- a/composer.json
+++ b/composer.json
@@ -37,6 +37,7 @@
         "ext-json": "*",
         "ext-mbstring": "*",
         "ext-gd": "*",
+        "ext-fileinfo": "*",
         "gregwar/captcha": "^1.1",
         "phpmailer/phpmailer": "^6.1",
         "jsvrcek/ics": "^0.8",