diff --git a/php/containers.json b/php/containers.json
index 57117d83..7a4d455f 100644
--- a/php/containers.json
+++ b/php/containers.json
@@ -857,6 +857,9 @@
       "expose": [
         "3002"
       ],
+      "tmpfs": [
+        "/app"
+      ],
       "internal_port": "3002",
       "environment": [
         "TZ=%TIMEZONE%",