diff --git a/platformio.ini b/platformio.ini
index a0af25d..1e427fe 100644
--- a/platformio.ini
+++ b/platformio.ini
@@ -15,12 +15,14 @@ board_build.f_cpu = 160000000L
 framework = arduino
 ;upload_flags = --port=8266 --auth=esp-react
 ;upload_port = 192.168.0.6
+monitor_speed = 115200
+
 build_flags=
   -D NO_GLOBAL_ARDUINOOTA
 ; -D ENABLE_CORS
 lib_deps =
   https://github.com/PaulStoffregen/Time
   https://github.com/gmag11/NtpClient
-  https://github.com/bblanchon/ArduinoJson
+  ArduinoJson@>=5.0.0,<6.0.0
   https://github.com/me-no-dev/ESPAsyncWebServer
   https://github.com/me-no-dev/AsyncTCP