diff --git a/xos/tosca/custom_types/xos.m4 b/xos/tosca/custom_types/xos.m4
index 8252fb1..1a5bee1 100644
--- a/xos/tosca/custom_types/xos.m4
+++ b/xos/tosca/custom_types/xos.m4
@@ -153,7 +153,7 @@
         properties:
             password:
                 type: string
-                required: true
+                required: false
             firstname:
                 type: string
                 required: true
diff --git a/xos/tosca/custom_types/xos.yaml b/xos/tosca/custom_types/xos.yaml
index 9e828f9..96c03fa 100644
--- a/xos/tosca/custom_types/xos.yaml
+++ b/xos/tosca/custom_types/xos.yaml
@@ -215,7 +215,7 @@
         properties:
             password:
                 type: string
-                required: true
+                required: false
             firstname:
                 type: string
                 required: true