diff --git a/styles/proton/catppuccin.user.css b/styles/proton/catppuccin.user.css
index a79f6b5..3ce858e 100644
--- a/styles/proton/catppuccin.user.css
+++ b/styles/proton/catppuccin.user.css
@@ -314,6 +314,11 @@
       --background-strong: @crust;
     }
 
+    .button-promotion {
+      --upgrade-color-stop-1: @red;
+      --upgrade-color-stop-2: @blue;
+    }
+
     .item-container-row:not(.item-is-selected):hover,
     .item-container:not(.item-is-selected):hover {
       box-shadow: none;