diff --git a/libraries/EEPROM/library.properties b/libraries/EEPROM/library.properties
index 2d8a7685ad..a3f7698ee4 100644
--- a/libraries/EEPROM/library.properties
+++ b/libraries/EEPROM/library.properties
@@ -5,5 +5,5 @@ maintainer=stm32duino
 sentence=Enables reading and writing to the permanent board storage.
 paragraph=This library allows to read and write data in a memory type, the EEPROM, that keeps its content also when the board is powered off. The amount of EEPROM available depends on the microcontroller type.
 category=Data Storage
-url=http://www.arduino.cc/en/Reference/EEPROM
+url=https://github.com/stm32duino/Arduino_Core_STM32/tree/main/libraries/EEPROM
 architectures=stm32
diff --git a/libraries/Keyboard/library.properties b/libraries/Keyboard/library.properties
index 1533d990c3..a9460f7eed 100644
--- a/libraries/Keyboard/library.properties
+++ b/libraries/Keyboard/library.properties
@@ -5,5 +5,5 @@ maintainer=stm32duino
 sentence=Allows a STM32 based board with USB capabilities to act as a Keyboard.
 paragraph=This library plugs on the HID implementation provided by the core.
 category=Device Control
-url=http://www.arduino.cc/en/Reference/Keyboard
+url=https://github.com/stm32duino/Arduino_Core_STM32/tree/main/libraries/Keyboard
 architectures=stm32
diff --git a/libraries/Mouse/library.properties b/libraries/Mouse/library.properties
index eff500cead..da59d05041 100644
--- a/libraries/Mouse/library.properties
+++ b/libraries/Mouse/library.properties
@@ -5,5 +5,5 @@ maintainer=stm32duino
 sentence=Allows a STM32 based board with USB capabilities to act as a Mouse.
 paragraph=This library plugs on the HID implementation provided by the core.
 category=Device Control
-url=http://www.arduino.cc/en/Reference/Mouse
+url=https://github.com/stm32duino/Arduino_Core_STM32/tree/main/libraries/Mouse
 architectures=stm32
diff --git a/libraries/SPI/library.properties b/libraries/SPI/library.properties
index a4bdcbd0e0..d6c92ff136 100644
--- a/libraries/SPI/library.properties
+++ b/libraries/SPI/library.properties
@@ -5,5 +5,5 @@ maintainer=stm32duino
 sentence=Enables the communication with devices that use the Serial Peripheral Interface (SPI) Bus.
 paragraph=This library is based on the official Arduino SPI library and adapted to STM32 boards.
 category=Communication
-url=http://www.arduino.cc/en/Reference/SPI
+url=https://github.com/stm32duino/Arduino_Core_STM32/tree/main/libraries/SPI
 architectures=stm32
diff --git a/libraries/Servo/library.properties b/libraries/Servo/library.properties
index 1d3cd276d0..a27f44e04b 100644
--- a/libraries/Servo/library.properties
+++ b/libraries/Servo/library.properties
@@ -5,5 +5,5 @@ maintainer=stm32duino
 sentence=Allows Arduino/Genuino and STM32 based boards to control a variety of servo motors.
 paragraph=This library can control a great number of servos.<br />It makes careful use of timers: the library can control 12 servos using only 1 timer.<br />On the Arduino Due you can control up to 60 servos.<br />
 category=Device Control
-url=http://www.arduino.cc/en/Reference/Servo
+url=https://github.com/stm32duino/Arduino_Core_STM32/tree/main/libraries/Servo
 architectures=avr,sam,samd,nrf52,stm32f4,stm32
diff --git a/libraries/SoftwareSerial/library.properties b/libraries/SoftwareSerial/library.properties
index 4bf36a6600..8045030cd5 100644
--- a/libraries/SoftwareSerial/library.properties
+++ b/libraries/SoftwareSerial/library.properties
@@ -5,6 +5,6 @@ maintainer=stm32duino
 sentence=Enables serial communication on any digital pin.
 paragraph=The SoftwareSerial library has been developed to allow serial communication on any digital pin of the board, using software to replicate the functionality of the hardware UART. It is possible to have multiple software serial ports.
 category=Communication
-url=http://www.arduino.cc/en/Reference/SoftwareSerial
+url=https://github.com/stm32duino/Arduino_Core_STM32/tree/main/libraries/SoftwareSerial
 architectures=stm32
 
diff --git a/libraries/Wire/library.properties b/libraries/Wire/library.properties
index 2419e4dcc6..3816da1a85 100644
--- a/libraries/Wire/library.properties
+++ b/libraries/Wire/library.properties
@@ -5,5 +5,5 @@ maintainer=stm32duino
 sentence=Allows the communication between devices or sensors connected via Two Wire (I2C) Interface Bus.
 paragraph=
 category=Communication
-url=http://www.arduino.cc/en/Reference/Wire
+url=https://github.com/stm32duino/Arduino_Core_STM32/tree/main/libraries/Wire
 architectures=stm32