diff --git a/composer.json b/composer.json
index 59f7229..86e6fdf 100644
--- a/composer.json
+++ b/composer.json
@@ -7,7 +7,7 @@
     "config": {
         "sort-packages": true,
         "platform": {
-            "php": "7.2"
+            "php": "7.2.9"
         }
     },
     "require": {