diff --git a/platformio.ini b/platformio.ini
index 2f1e518..a4bb2fd 100644
--- a/platformio.ini
+++ b/platformio.ini
@@ -66,6 +66,7 @@ build_flags =
 	#-D PIO_FRAMEWORK_ARDUINO_ENABLE_EXCEPTIONS
 	#-D SKIP_SLEEPMODE
 	#-D DOUBLERESETDETECTOR_DEBUG=true
+	#-D FORCE_GRAVITY_MODE # used to debug gravity mode
 	-D COLLECT_PERFDATA	# This option will collect runtime data for a few defined methods to measure time, dumped to serial and/or influxdb 
 	-D LOG_LEVEL=6 # Maximum log level for the debug build.
 	-D CFG_DISABLE_LOGGING # Turn off verbose/notice logging to reduce size and dont overload uart. 
@@ -126,7 +127,7 @@ board_build.filesystem = littlefs
 
 [env:gravity32-release]
 framework = arduino
-platform = espressif32
+platform = espressif32 @ 3.5.0
 upload_speed = ${common_env_data.upload_speed}
 monitor_speed = ${common_env_data.monitor_speed}
 extra_scripts =  
@@ -161,7 +162,7 @@ monitor_filters = esp32_exception_decoder
 
 [env:gravity32-perf]
 framework = arduino
-platform = espressif32
+platform = espressif32 @ 3.5.0
 upload_speed = ${common_env_data.upload_speed}
 monitor_speed = ${common_env_data.monitor_speed}
 extra_scripts =