diff --git a/src/infra/provider-activity.test.ts b/src/infra/provider-activity.test.ts
index 5c8e08387..85ae8c6d5 100644
--- a/src/infra/provider-activity.test.ts
+++ b/src/infra/provider-activity.test.ts
@@ -1,4 +1,4 @@
-import { beforeEach, describe, expect, it, vi } from "vitest";
+import { afterEach, beforeEach, describe, expect, it, vi } from "vitest";
 
 import {
   getProviderActivity,
@@ -13,6 +13,10 @@ describe("provider activity", () => {
     vi.setSystemTime(new Date("2026-01-08T00:00:00Z"));
   });
 
+  afterEach(() => {
+    vi.useRealTimers();
+  });
+
   it("records inbound/outbound separately", () => {
     recordProviderActivity({ provider: "telegram", direction: "inbound" });
     vi.advanceTimersByTime(1000);
@@ -35,13 +39,17 @@ describe("provider activity", () => {
       direction: "inbound",
       at: 2,
     });
-    expect(getProviderActivity({ provider: "whatsapp", accountId: "a" })).toEqual({
-      inboundAt: 1,
-      outboundAt: null,
-    });
-    expect(getProviderActivity({ provider: "whatsapp", accountId: "b" })).toEqual({
-      inboundAt: 2,
-      outboundAt: null,
-    });
+    expect(getProviderActivity({ provider: "whatsapp", accountId: "a" })).toEqual(
+      {
+        inboundAt: 1,
+        outboundAt: null,
+      },
+    );
+    expect(getProviderActivity({ provider: "whatsapp", accountId: "b" })).toEqual(
+      {
+        inboundAt: 2,
+        outboundAt: null,
+      },
+    );
   });
 });