diff --git a/Arduino/CanGrow/cangrow.sh b/Arduino/CanGrow/cangrow.sh
index d00c4e4..981c441 100755
--- a/Arduino/CanGrow/cangrow.sh
+++ b/Arduino/CanGrow/cangrow.sh
@@ -60,14 +60,14 @@ case $1 in
 		read
 		echo ""
 		echo ":: Installing Arduino IDE packages with apt, please enter sudo password:"
-		sudo apt update 
-		sudo apt install arduino python3 python3-serial wget curl xxd
+		sudo apt update || exit 1
+		sudo apt install arduino python3 python3-serial wget curl xxd || exit 1
 		echo ":: Ensure directory ${ACLI_DIR} is present"
 		test -d ${ACLI_DIR} || mkdir -p ${ACLI_DIR}
 		echo ":: Please ensure ${ACLI_DIR} is in your \$PATH, I wont do it."
 		echo ""
 		echo ":: Downloading arduino-cli 1.0.0 into ${ACLI_DIR}/"
-		wget -O - "https://github.com/arduino/arduino-cli/releases/download/v1.0.0/arduino-cli_1.0.0_Linux_64bit.tar.gz" | tar -C ${ACLI_DIR} -zxvf - arduino-cli 
+		wget -O - "https://github.com/arduino/arduino-cli/releases/download/v1.0.4/arduino-cli_1.0.4_Linux_64bit.tar.gz" | tar -C ${ACLI_DIR} -zxvf - arduino-cli 
 		chmod +x ${ACLI}
 		echo ""
 		echo ":: Installing ESP8266 and ESP32 cores for Arduino"
@@ -76,7 +76,7 @@ case $1 in
 			${ACLI_CMD} core install ${CORES[$core]}
 		done
 		echo ":: Installing Arduino libraries"
-		${ACLI_CMD} lib update-index
+		${ACLI_CMD} lib update-index || exit 1
 		for lib in ${!LIBS[@]}
 		do
 			echo "     - ${LIBS[$lib]}"
@@ -84,7 +84,7 @@ case $1 in
 		
 		for lib in ${!LIBS[@]}
 		do
-			${ACLI_CMD} lib install "${LIBS[$lib]}"
+			${ACLI_CMD} lib install "${LIBS[$lib]}" || exit 1
 		done
 		echo ""
 		echo ":: Setup build environment done! You can now build the firmware"