diff --git a/modules/home/sway/default.nix b/modules/home/sway/default.nix
index f75b130..449b0ea 100644
--- a/modules/home/sway/default.nix
+++ b/modules/home/sway/default.nix
@@ -163,8 +163,8 @@ in {
             "${modifier}+Shift+Print" = ''exec ${pkgs.wf-recorder}/bin/wf-recorder -g "$(${pkgs.slurp}/bin/slurp)" -f "$HOME/Videos/screencapture_$(${pkgs.coreutils}/bin/date +%F-%T).mp4"'';
 
             # brightness
-            "XF86MonBrightnessDown" = "exec ${pkgs.light}/bin/light -U 5";
-            "XF86MonBrightnessUp" = "exec ${pkgs.light}/bin/light -A 5";
+            "XF86MonBrightnessDown" = "exec ${pkgs.light}/bin/light -T 0.9";
+            "XF86MonBrightnessUp" = "exec ${pkgs.light}/bin/light -T 1.1";
             # volume
             "XF86AudioRaiseVolume" = "exec '${pkgs.pulseaudio}/bin/pactl set-sink-volume @DEFAULT_SINK@ +1%'";
             "XF86AudioLowerVolume" = "exec '${pkgs.pulseaudio}/bin/pactl set-sink-volume @DEFAULT_SINK@ -1%'";