diff --git a/MQTTSNGateway/GatewayTester/src/LMqttsnClientApp.h b/MQTTSNGateway/GatewayTester/src/LMqttsnClientApp.h
index 627ac92..254f171 100644
--- a/MQTTSNGateway/GatewayTester/src/LMqttsnClientApp.h
+++ b/MQTTSNGateway/GatewayTester/src/LMqttsnClientApp.h
@@ -185,7 +185,7 @@ struct LUdpConfig{
 /*=================================
  *    Starting prompt
  ==================================*/
-#define TESTER_VERSION " * Version: 1.1.0"
+#define TESTER_VERSION " * Version: 1.0.0"
 
 #define PAHO_COPYRIGHT0 " * MQTT-SN Gateway Tester"
 #define PAHO_COPYRIGHT1 " * Part of Project Paho in Eclipse"
diff --git a/MQTTSNGateway/src/MQTTSNGWVersion.h b/MQTTSNGateway/src/MQTTSNGWVersion.h
index 90f4eab..6989e2c 100644
--- a/MQTTSNGateway/src/MQTTSNGWVersion.h
+++ b/MQTTSNGateway/src/MQTTSNGWVersion.h
@@ -17,6 +17,6 @@
 #ifndef MQTTSNGWVERSION_H_IN_
 #define MQTTSNGWVERSION_H_IN_
 
-#define PAHO_GATEWAY_VERSION "1.1.0"
+#define PAHO_GATEWAY_VERSION "1.0.0"
 
 #endif /* MQTTSNGWVERSION_H_IN_ */