diff --git a/.changeset/marketplace-seed-test-budget.md b/.changeset/marketplace-seed-test-budget.md
new file mode 100644
index 0000000000..d87b739d7f
--- /dev/null
+++ b/.changeset/marketplace-seed-test-budget.md
@@ -0,0 +1,32 @@
+---
+"@objectstack/cloud-connection": patch
+---
+
+fix(cloud-connection): align the marketplace seed test's timeout with its sibling (#3785)
+
+`marketplace-install-local-state-machine-exempt.test.ts` failed under a
+full-repo `pnpm test` at 30s, while passing every time the package ran alone.
+
+Both marketplace seed tests drive `MarketplaceInstallLocalPlugin`, whose
+seeding path dynamically imports the real `@objectstack/runtime` (unmocked on
+purpose, twice: `recordSeedSummary` and `mergeSeedDatasetsIntoKernel`). That
+cold import costs seconds by itself and multiples of that under a fully
+parallel turbo run, and it is charged to whichever test triggers it first.
+
+Its sibling `marketplace-install-local-seed-lookup.test.ts` was diagnosed as
+exactly this — *"an import stall, not a hang"* — and raised to 120s. This file
+was left at 30s and kept flaking the same way. The budget is now aligned, with
+the rationale stated locally rather than only in the sibling.
+
+The flaky set turns out to be exactly the intersection of "does not mock
+`@objectstack/runtime`" and "actually drives seeding":
+
+| test | mocks runtime | drives seeding | budget |
+| :--- | :--- | :--- | :--- |
+| `conflict`, `bundle` | no | **no** — never reaches the import | default |
+| `reseed`, `heal` | **yes** | yes | default |
+| `seed-lookup` | no | yes | 120s (already) |
+| `state-machine-exempt` | no | yes | 120s (this change) |
+
+So the two tests #3785 recorded are the only two that can hit this, and no
+other file needs the same treatment. A genuine hang still fails — later.
diff --git a/packages/cloud-connection/src/marketplace-install-local-state-machine-exempt.test.ts b/packages/cloud-connection/src/marketplace-install-local-state-machine-exempt.test.ts
index dbf1fe55a4..f31d232e7d 100644
--- a/packages/cloud-connection/src/marketplace-install-local-state-machine-exempt.test.ts
+++ b/packages/cloud-connection/src/marketplace-install-local-state-machine-exempt.test.ts
@@ -208,7 +208,16 @@ beforeEach(() => { dir = mkdtempSync(join(tmpdir(), 'mil-fsm-exempt-')); });
 afterEach(() => { rmSync(dir, { recursive: true, force: true }); vi.restoreAllMocks(); });
 
 describe('marketplace install — state_machine initialStates exemption (#3433)', () => {
-    it('lands every mid-lifecycle seed row (no initialStates rejection on the marketplace seam)', { timeout: 30_000 }, async () => {
+    // Same budget, same reason, as `marketplace-install-local-seed-lookup.test.ts`
+    // (#3785): both drive `MarketplaceInstallLocalPlugin`, whose install handler
+    // dynamically imports the real @objectstack/runtime (unmocked on purpose).
+    // That cold import costs seconds on its own and multiples of that under a
+    // fully parallel turbo run, where this file competes with every other
+    // package's suite for cores. The sibling was diagnosed as exactly this —
+    // "an import stall, not a hang" — and raised to 120s; this one was left at
+    // 30s and kept flaking the same way (observed again at 30076ms). A genuine
+    // hang still fails here, just later.
+    it('lands every mid-lifecycle seed row (no initialStates rejection on the marketplace seam)', { timeout: 120_000 }, async () => {
         const { engine, store, registry } = makeEngine();
         const rawApp = makeRawApp();
         const { ctx, fire } = makeCtx(rawApp, {