diff --git a/esp32/platformio.ini b/esp32/platformio.ini
index ba8321f..f68665b 100644
--- a/esp32/platformio.ini
+++ b/esp32/platformio.ini
@@ -73,7 +73,7 @@ build_flags =
 	${build_settings.build_flags}
 	-D CORE_DEBUG_LEVEL=4
 	-D register=
-	-std=gnu++17
+	-std=gnu++2a
 build_unflags = -std=gnu++11
 build_src_flags = 
 	-Wformat=2