diff --git a/php/containers.json b/php/containers.json
index 5c15c079..87746514 100644
--- a/php/containers.json
+++ b/php/containers.json
@@ -397,6 +397,8 @@
       "cap_add": [
         "MKNOD",
         "SYS_ADMIN",
+        "SYS_CHROOT",
+        "FOWNER",
         "CHOWN"
       ],
       "cap_drop": [