diff --git a/boards/bluepill-128kib/include/board.h b/boards/bluepill-128kib/include/board.h
index 4a88d49ea6..113866b2a6 100644
--- a/boards/bluepill-128kib/include/board.h
+++ b/boards/bluepill-128kib/include/board.h
@@ -13,7 +13,7 @@
  * This board can be bought very cheaply on sides like eBay or
  * AliExpress. Although the MCU nominally has 64 KiB ROM, most of them
  * have 128 KiB ROM. For more information see:
- * http://wiki.stm32duino.com/index.php?title=Blue_Pill
+ * https://web.archive.org/web/20190527040051/http://wiki.stm32duino.com/index.php?title=Blue_Pill
  *
  * @{
  *
diff --git a/boards/bluepill/include/board.h b/boards/bluepill/include/board.h
index e0cdb07720..2911a70287 100644
--- a/boards/bluepill/include/board.h
+++ b/boards/bluepill/include/board.h
@@ -13,7 +13,7 @@
  * This board can be bought very cheaply on sides like eBay or
  * AliExpress. Although the MCU nominally has 64 KiB ROM, most of them
  * have 128 KiB ROM. For more information see:
- * http://wiki.stm32duino.com/index.php?title=Blue_Pill
+ * https://web.archive.org/web/20190527040051/http://wiki.stm32duino.com/index.php?title=Blue_Pill
  *
  * @{
  *