diff --git a/README.md b/README.md
index b2391ca..2d0c6df 100644
--- a/README.md
+++ b/README.md
@@ -267,7 +267,7 @@ The [Choosing tools for Game Boy development](https://gbdev.io/guides/tools.html
 
 #### Development tools
 
-- [GBExtended](http://www.tensi.eu/thomas/programming/gameboy/gbextended.html) - C library extending gbdk.
+- [GBExtended](https://www.tensi.eu/thomas/programming/utilities/gbx_library/gbx_library.html) - C library extending gbdk.
 - [gbdk-lib-extension](https://github.com/ProGM/gbdk-lib-extension) - A small set of sources and tools for the Game Boy Development Kit by Michael Hope.
 - [Dot Matrix Game Editor](http://www.dotmatrixgame.com/) - An IDE for Game Boy programming in a C-like language called GBL, with many other features like tile and map extraction, WLA-DX assembly, and more.
 - [mgbdis](https://github.com/mattcurrie/mgbdis) - Game Boy ROM disassembler with RGBDS compatible output.
@@ -442,7 +442,7 @@ Complete and open source games.
 - [gb-mines](https://github.com/andreasjhkarlsson/gb-mines)
 - [oranges](http://www.atari2600land.com/gameboy/oranges.html)
 - [red hot princess carnage](https://github.com/Imanolea/bitbitjam3_red_hot_princess_carnage)
-- [loderunner](http://www.tensi.eu/thomas/programming/gameboy/loderunner.html)
+- [loderunner](https://www.tensi.eu/thomas/programming/games/loderunner/loderunner.html)
 - [Hives](https://refreshgames.co.uk/2017/04/24/ludum-dare-38-entry-hives/)
 - [Bubble Factory](https://github.com/DonaldHays/bubblefactory) - *Vanilla- SDCC (no gbdk).
 - [GBC Atari Boxing](https://github.com/rubfi/gbc-atari-boxing) - Atari 2600 Boxing clone for the Game Boy (Color).