diff --git a/platformio.ini b/platformio.ini
index 90a6464..d2ee75f 100644
--- a/platformio.ini
+++ b/platformio.ini
@@ -10,12 +10,12 @@
 
 
 [env:ttgo-lora32-v21]
-platform = espressif32
+platform = espressif32 @ 6.2.0
 board = ttgo-lora32-v21
 framework = arduino
 monitor_speed = 115200
 lib_deps = 
-	bblanchon/ArduinoJson@^6.20.1
+	bblanchon/ArduinoJson@^6.20.2
 	sandeepmistry/LoRa@^0.8.0
 	adafruit/Adafruit GFX Library @ 1.11.5
 	adafruit/Adafruit SSD1306 @ 2.5.7