diff --git a/packages/ui-web/src/lib/utils.test.ts b/packages/ui-web/src/lib/utils.test.ts
deleted file mode 100644
index a9cfa41..0000000
--- a/packages/ui-web/src/lib/utils.test.ts
+++ /dev/null
@@ -1,19 +0,0 @@
-import { describe, expect, it } from "vitest";
-import { buttonVariants } from "../components/ui/button";
-import { cn } from "./utils";
-
-describe("cn", () => {
-  it("treats the ui type scale as font size, not color", () => {
-    expect(cn("text-primary-foreground", "text-ui-body")).toBe(
-      "text-primary-foreground text-ui-body",
-    );
-    expect(cn("text-ui-body", "text-base")).toBe("text-base");
-  });
-
-  it("keeps the variant label color on resized buttons", () => {
-    const classes = cn(buttonVariants({ size: "lg", className: "text-base" })).split(" ");
-    expect(classes).toContain("text-primary-foreground");
-    expect(classes).toContain("text-base");
-    expect(classes).not.toContain("text-ui-body");
-  });
-});
diff --git a/packages/ui-web/src/lib/utils.ts b/packages/ui-web/src/lib/utils.ts
index 88560bd..365058c 100644
--- a/packages/ui-web/src/lib/utils.ts
+++ b/packages/ui-web/src/lib/utils.ts
@@ -1,27 +1,5 @@
 import { type ClassValue, clsx } from "clsx";
-import { extendTailwindMerge } from "tailwind-merge";
-
-// The shared type scale (`text-ui-*`) is a font size, not a color. Without this,
-// `text-ui-body` would replace `text-primary-foreground` and hide button labels.
-const twMerge = extendTailwindMerge({
-  extend: {
-    classGroups: {
-      "font-size": [
-        {
-          text: [
-            "ui-caption",
-            "ui-label",
-            "ui-body-sm",
-            "ui-body",
-            "ui-reading",
-            "ui-title-sm",
-            "ui-title",
-          ],
-        },
-      ],
-    },
-  },
-});
+import { twMerge } from "tailwind-merge";
 
 export function cn(...inputs: ClassValue[]) {
   return twMerge(clsx(inputs));