diff --git a/packages/trilean/package.json b/packages/trilean/package.json
index eccb00c..7f6ff3a 100644
--- a/packages/trilean/package.json
+++ b/packages/trilean/package.json
@@ -89,7 +89,7 @@
     "@cloudflare/vitest-pool-workers": "^0.22.0",
     "@exadev/eslint-config": "2.12.1",
     "@types/node": "^26.4.0",
-    "@vitest/coverage-v8": "^4.1.11",
+    "@vitest/coverage-v8": "^5.0.1",
     "canonicalize": "^4.0.0",
     "eslint": "^10.9.1",
     "eslint-config-prettier": "^10.1.8",