diff --git a/platformio.ini b/platformio.ini
index ba61e1f..a8936da 100644
--- a/platformio.ini
+++ b/platformio.ini
@@ -14,7 +14,7 @@ default_envs = serial
 extra_configs = platformio-*.ini
 
 [env]
-platform = espressif32
+platform = espressif32@3.5.0
 board = esp32thing
 board_build.partitions = default.csv
 framework = arduino