diff --git a/MIDAS/platformio.ini b/MIDAS/platformio.ini
index 2f52aeb4..ec68eb1c 100644
--- a/MIDAS/platformio.ini
+++ b/MIDAS/platformio.ini
@@ -1,5 +1,5 @@
 [env:mcu_main_sustainer]
-platform = espressif32
+platform = espressif32@6.7.0
 board = esp32-s3-devkitc-1
 ; board = adafruit_feather_esp32s3
 framework = arduino
@@ -19,7 +19,7 @@ lib_deps =
 build_src_filter = +<*> -<silsim/> +<hardware/> -<hilsim>
 
 [env:mcu_main_booster]
-platform = espressif32
+platform = espressif32@6.7.0
 board = esp32-s3-devkitc-1
 ; board = adafruit_feather_esp32s3
 framework = arduino
@@ -39,7 +39,7 @@ lib_deps =
 build_src_filter = +<*> -<silsim/> +<hardware/> -<hilsim>
 
 [env:mcu_hilsim_sustainer]
-platform = espressif32
+platform = espressif32@6.7.0
 board = adafruit_feather_esp32s3
 framework = arduino
 extra_scripts =
@@ -54,7 +54,7 @@ build_unflags =
     -std=gnu++11
 
 [env:mcu_hilsim_booster]
-platform = espressif32
+platform = espressif32@6.7.0
 board = adafruit_feather_esp32s3
 framework = arduino
 extra_scripts =