diff --git a/platformio.ini b/platformio.ini
index f13d4f5..93804de 100644
--- a/platformio.ini
+++ b/platformio.ini
@@ -30,7 +30,6 @@ include_dir = .
 
 [env]
 build_flags = -Wall -Wextra
-; monitor_filters = time
 
 [env:samd21-dev-usb]
 platform = atmelsam
@@ -250,7 +249,6 @@ platform = ststm32
 board = nucleo_f429zi
 framework = arduino
 lib_deps = ${env.lib_deps}
-			arduino-libraries/Ethernet @ ^2.0.1
 			stm32duino/STM32Ethernet @ ^1.3.0
 			stm32duino/STM32duino LwIP @ ^2.1.2
 build_flags = -std=c++17 -Os -g2 -Wunused-variable
@@ -263,10 +261,9 @@ upload_protocol = stlink
 ;
 [env:Nucleo-F439ZI]
 platform = ststm32
-board = nucleo_f429zi
+board = nucleo_f439zi
 framework = arduino
 lib_deps = ${env.lib_deps}
-			arduino-libraries/Ethernet @ ^2.0.1
 			stm32duino/STM32Ethernet @ ^1.3.0
 			stm32duino/STM32duino LwIP @ ^2.1.2
 build_flags = -std=c++17 -Os -g2 -Wunused-variable