diff --git a/platformio.ini b/platformio.ini
index 436777ec..731bb60d 100644
--- a/platformio.ini
+++ b/platformio.ini
@@ -30,7 +30,7 @@ default_envs = openevse_wifi_v1
 
 [common]
 lib_deps =
-  bblanchon/ArduinoJson@6.20.1
+  bblanchon/ArduinoJson@7.4.2
   jeremypoulter/ArduinoMongoose@0.0.22
   jeremypoulter/Micro Debug@0.0.5
   jeremypoulter/ConfigJson@0.0.6