diff --git a/mise.toml b/mise.toml
index a7b3f87..3cab53a 100644
--- a/mise.toml
+++ b/mise.toml
@@ -3,7 +3,7 @@ min_version = "2026.8.0"
 [tools]
 node = "26"
 deno = "2"
-bun = "1"
+bun = "latest"
 pnpm = "11"
 "npm:npm" = "11"
 
diff --git a/tests/browser/fixtures/app.ts b/tests/browser/fixtures/app.ts
index 43ce05c..2e48f36 100644
--- a/tests/browser/fixtures/app.ts
+++ b/tests/browser/fixtures/app.ts
@@ -581,3 +581,7 @@ globalThis.opfsTest = {
   adapter: roundTripAdapter,
   indexedDbAppend,
 };
+
+declare global {
+  var opfsTest: BrowserTestApiType;
+}
\ No newline at end of file