diff --git a/platformio.ini b/platformio.ini
index 2909d3c..e375d7a 100644
--- a/platformio.ini
+++ b/platformio.ini
@@ -18,3 +18,4 @@ lib_deps =
 	yiannisbourkelis/Uptime Library @ ^1.0.0
 	wifwaf/MH-Z19@^1.5.3
 monitor_speed = 115200
+upload_speed = 921600