diff --git a/spin.toml b/spin.toml
index 9aa393c..d0cf50c 100644
--- a/spin.toml
+++ b/spin.toml
@@ -9,14 +9,16 @@ description = "Triggered by MQTT"
 [variables]
 mqtt_topic = { required = true }
 mqtt_broker_uri = { required = true }
+mqtt_username = { default = "" }
+mqtt_password = { default = "" }
 # sqlite_username = { required = true }
 # sqlite_password = { required = true }
 
 [application.trigger.mqtt]
 # address = "mqtt://localhost:1883"
 address = "{{ mqtt_broker_uri }}"
-username = ""
-password = ""
+username = "{{ mqtt_username }}"
+password = "{{ mqtt_password }}"
 keep_alive_interval = "30" # seconds
 
 [[trigger.mqtt]]
diff --git a/spinkube/spinapp.yaml b/spinkube/spinapp.yaml
index f480585..a318eca 100644
--- a/spinkube/spinapp.yaml
+++ b/spinkube/spinapp.yaml
@@ -11,6 +11,10 @@ spec:
     value: mqtt://emqx.default.svc.cluster.local:1883
   - name: mqtt_topic
     value: booth/+
+  - name: mqtt_username
+    value: ""
+  - name: mqtt_password
+    value: ""
   # - name: sqlite_password
   #   value: password
   # - name: sqlite_username