diff --git a/.config/i3/config b/.config/i3/config
index 908101e..e1b85a5 100644
--- a/.config/i3/config
+++ b/.config/i3/config
@@ -191,7 +191,7 @@ bindsym XF86MonBrightnessUp exec xbacklight -inc 5 # increase screen brightness
 bindsym XF86MonBrightnessDown exec xbacklight -dec 5 # decrease screen brightness
 
 # Lock screen
-bindsym $mod+l exec xscreensaver-command --lock
+bindsym $mod+l exec i3lock -bfte -i ~/.config/i3/matrix-elements-design.png
 
 # Print screen
 bindsym Print exec --no-startup-id scrot '%Y-%m-%d-%s_screenshot_$wx$h.jpg' -e 'mv $f ~/Images/'
diff --git a/.config/i3/matrix-elements-design.png b/.config/i3/matrix-elements-design.png
new file mode 100644
index 0000000..3bae11d
Binary files /dev/null and b/.config/i3/matrix-elements-design.png differ
diff --git a/README.md b/README.md
index 763320a..0cbdcff 100644
--- a/README.md
+++ b/README.md
@@ -82,6 +82,7 @@ Sont nécessaires :
   * kitty + ttf-fira-code (AUR) pour les fontes avec ligatures
   * mlocate
   * most
+  * i3lock pour le verrouillage de l'écran
   * i3wm-gaps
   * redshift
   * ripgrep
@@ -90,7 +91,6 @@ Sont nécessaires :
   * ttf-dejavu
   * vim + neovim
   * vim-airline + powerline-fonts (pour VIM)
-  * xscreensaver
   * zsh + oh-my-zsh (Cf. https://github.com/robbyrussell/oh-my-zsh) + powerlevel10k (Cf. https://github.com/romkatv/powerlevel10k#oh-my-zsh)
 
 ## Cas de ZSH