diff --git a/.changeset/hot-moons-walk.md b/.changeset/hot-moons-walk.md
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+---
+"@cloudflare/vitest-pool-workers": patch
+---
+
+fix: The `workerd` provided `node:url` module doesn't support everything Vitest needs. As a short-term fix, inject the `node:url` polyfill into the worker bundle.