diff --git a/composer.json b/composer.json
index 7b2b87284..9d942579a 100644
--- a/composer.json
+++ b/composer.json
@@ -9,6 +9,7 @@
         "ext-bcmath": "*",
         "ext-ctype": "*",
         "ext-curl": "*",
+        "ext-intl": "*",
         "ext-json": "*",
         "ext-mbstring": "*",
         "ext-openssl": "*",