diff --git a/platformio.ini b/platformio.ini
index 620df13..60580db 100644
--- a/platformio.ini
+++ b/platformio.ini
@@ -24,9 +24,9 @@ src_build_flags =
   -fstack-protector
   -Wall
 lib_deps_external = 
-	fastled/FastLED@^3.5.0
+	fastled/FastLED@^3.6.0
 	thijse/ArduinoLog@^1.1.0
-	bblanchon/ArduinoJson@^6.17.3
+	bblanchon/ArduinoJson@^6.21.4
   JsonStreamingParser
   LittleFS