diff --git a/Services/data/devicemodels/chiller-01.json b/Services/data/devicemodels/chiller-01.json
index beb7b660..a3167a2b 100644
--- a/Services/data/devicemodels/chiller-01.json
+++ b/Services/data/devicemodels/chiller-01.json
@@ -4,7 +4,7 @@
     "Version": "0.0.1",
     "Name": "Chiller",
     "Description": "Chiller with external temperature, humidity and pressure sensors.",
-    "Protocol": "MQTT",
+    "Protocol": "AMQP",
     "Simulation": {
         "InitialState": {
             "online": true,
diff --git a/Services/data/devicemodels/elevator-01.json b/Services/data/devicemodels/elevator-01.json
index 1f1a5171..5d6c739b 100644
--- a/Services/data/devicemodels/elevator-01.json
+++ b/Services/data/devicemodels/elevator-01.json
@@ -4,7 +4,7 @@
     "Version": "0.0.1",
     "Name": "Elevator",
     "Description": "Elevator with floor, vibration and temperature sensors.",
-    "Protocol": "MQTT",
+    "Protocol": "AMQP",
     "Simulation": {
         "InitialState": {
             "online": true,
diff --git a/Services/data/devicemodels/truck-01.json b/Services/data/devicemodels/truck-01.json
index a89e512b..c8acdd87 100644
--- a/Services/data/devicemodels/truck-01.json
+++ b/Services/data/devicemodels/truck-01.json
@@ -4,7 +4,7 @@
     "Version": "0.0.1",
     "Name": "Truck",
     "Description": "Truck with GPS, speed and cargo temperature sensors",
-    "Protocol": "MQTT",
+    "Protocol": "AMQP",
     "Simulation": {
         "InitialState": {
             "online": true,