diff --git a/.changeset/pretty-wombats-switch.md b/.changeset/pretty-wombats-switch.md
new file mode 100644
index 00000000..143e16d2
--- /dev/null
+++ b/.changeset/pretty-wombats-switch.md
@@ -0,0 +1,7 @@
+---
+'@davidevmod/focus-trap': patch
+---
+
+Remove custom type annotation for `Array.prototype.findLast`.
+
+It is now buit-in since TypeScript v5.0 (https://github.com/microsoft/TypeScript/issues/48829#issuecomment-1442649966).
diff --git a/packages/focus-trap/src/global.d.ts b/packages/focus-trap/src/global.d.ts
index 754cb22e..bc690aaf 100644
--- a/packages/focus-trap/src/global.d.ts
+++ b/packages/focus-trap/src/global.d.ts
@@ -5,9 +5,4 @@ declare global {
   interface Document {
     getElementById<T extends HTMLElement | SVGElement = HTMLElement>(elementId: string): T | null;
   }
-
-  // Support for `Array.prototype.findLast` ships with v5.0: https://github.com/microsoft/TypeScript/issues/48829
-  interface Array<T> {
-    findLast(predicate: (element: T, index: number, array: T[]) => unknown, thisArg?: any): T | undefined;
-  }
 }