diff --git a/CYD-Klipper/platformio.ini b/CYD-Klipper/platformio.ini
index 88eed10..87de374 100644
--- a/CYD-Klipper/platformio.ini
+++ b/CYD-Klipper/platformio.ini
@@ -9,7 +9,7 @@
 ; https://docs.platformio.org/page/projectconf.html
 
 [env]
-platform = espressif32
+platform = https://github.com/platformio/platform-espressif32#v6.4.0
 board = esp32dev
 framework = arduino
 monitor_speed = 115200