1 files changed, 1 insertions, 0 deletions
diff --git a/composer.json b/composer.json
index 3b71238..85c0c05 100644
--- a/composer.json
+++ b/composer.json
@@ -10,6 +10,7 @@
     ],
     "require": {
         "php": "^5.6 || ^7.0",
+        "ext-ctype": "*",
         "ext-hash": "*",
         "ext-mongodb": "^1.2.0",
         "mongodb/mongodb": "^1.0.1"