diff --git a/composer.json b/composer.json
index 2f254877de..39d9358926 100644
--- a/composer.json
+++ b/composer.json
@@ -14,10 +14,17 @@
 	},
 	"require": {
 		"php": ">=5.6.1",
+		"ext-ctype": "*",
 		"ext-curl": "*",
 		"ext-dom": "*",
+		"ext-fileinfo": "*",
+		"ext-gd": "*",
+		"ext-iconv": "*",
 		"ext-json": "*",
+		"ext-libxml": "*",
+		"ext-mbstring": "*",
 		"ext-openssl": "*",
+		"ext-simplexml": "*",
 		"ext-xml": "*",
 		"asika/simple-console": "^1.0",
 		"divineomega/password_exposed": "^2.4",