diff --git a/platformio.ini b/platformio.ini
index 16cf044e..5420faa2 100644
--- a/platformio.ini
+++ b/platformio.ini
@@ -78,7 +78,7 @@ build_flags =
     '-DWIFI_PW_CREDENTIALS=""'
     -D MQTT_BROKER_SERVER="\"192.168.1.145"\"
     -D CO2_GADGET_VERSION="\"0.12."\"
-    -D CO2_GADGET_REV="\"070-development"\"
+    -D CO2_GADGET_REV="\"071-development"\"
     -DCACHE_DIR=".pio/build"
     -DBUZZER_PIN=2          ; ESP32 pin GPIO13 connected to piezo buzzer
     -DNEOPIXEL_PIN=26		; Pinnumber for button for down/next and back / exit actions