diff --git a/src/esp8266-intexsbh20/ConfigurationFile.cpp b/src/esp8266-intexsbh20/ConfigurationFile.cpp
index 8283ab1..3422e69 100644
--- a/src/esp8266-intexsbh20/ConfigurationFile.cpp
+++ b/src/esp8266-intexsbh20/ConfigurationFile.cpp
@@ -70,7 +70,7 @@ bool ConfigurationFile::load(const char* fileName)
       configFile.close();
       Serial.printf_P(PSTR("config file loaded successfully (has %d entries)\n"), configDoc.size());
     }
-    catch (std::runtime_error re)
+    catch (const std::runtime_error& re)
     {
       Serial.println(re.what());
       success = false;
diff --git a/src/esp8266-intexsbh20/MQTTPublisher.cpp b/src/esp8266-intexsbh20/MQTTPublisher.cpp
index d974a81..d454992 100644
--- a/src/esp8266-intexsbh20/MQTTPublisher.cpp
+++ b/src/esp8266-intexsbh20/MQTTPublisher.cpp
@@ -134,7 +134,7 @@ void MQTTPublisher::loop()
         publishIfDefined(MQTT_TOPIC::JET, pureSpaIO.isJetOn(), PureSpaIO::UNDEF::BOOL);
       }
 
-      bool b = pureSpaIO.isHeaterOn();
+      uint8 b = pureSpaIO.isHeaterOn();
       if (b != PureSpaIO::UNDEF::BOOL)
       {
         mqttClient.publish(MQTT_TOPIC::HEATER, b? (pureSpaIO.isHeaterStandby()? "standby" : "on") : "off", retainAll);
diff --git a/src/esp8266-intexsbh20/common.h b/src/esp8266-intexsbh20/common.h
index c8c3b32..3bdcd8f 100644
--- a/src/esp8266-intexsbh20/common.h
+++ b/src/esp8266-intexsbh20/common.h
@@ -52,7 +52,7 @@
 
 namespace CONFIG
 {
-  const char WIFI_VERSION[] = "1.0.8.0"; // 19.08.2023
+  const char WIFI_VERSION[] = "1.0.8.1"; // 22.08.2023
 
   // WiFi parameters
   const unsigned long WIFI_MAX_DISCONNECT_DURATION = 900000; // [ms] 5 min until reboot