diff --git a/ui/src/Components/Grid/AlertGrid/AlertGroup/Alert/index.test.js b/ui/src/Components/Grid/AlertGrid/AlertGroup/Alert/index.test.js
index f21456efe..d7e89b390 100644
--- a/ui/src/Components/Grid/AlertGrid/AlertGroup/Alert/index.test.js
+++ b/ui/src/Components/Grid/AlertGrid/AlertGroup/Alert/index.test.js
@@ -8,6 +8,8 @@ import { advanceTo, clear } from "jest-date-mock";
 
 import toDiffableHtml from "diffable-html";
 
+import Moment from "react-moment";
+
 import { MockAlert, MockAnnotation, MockAlertGroup } from "__mocks__/Alerts.js";
 import { AlertStore } from "Stores/AlertStore";
 import { SilenceFormStore } from "Stores/SilenceFormStore";
@@ -208,4 +210,28 @@ describe("<Alert />", () => {
         .hasClass("border-warning")
     ).toBe(true);
   });
+
+  it("alert timestamp is updated every minute", () => {
+    jest.useFakeTimers();
+    Moment.startPooledTimer();
+
+    advanceTo(new Date(Date.UTC(2018, 7, 14, 17, 36, 41)));
+
+    const alert = MockedAlert();
+    const group = MockAlertGroup({}, [alert], [], {}, {});
+    const tree = MountedAlert(alert, group, false, false);
+    expect(tree.find("time").text()).toBe("a few seconds ago");
+
+    advanceTo(new Date(Date.UTC(2018, 7, 14, 17, 37, 41)));
+    jest.advanceTimersByTime(61 * 1000);
+    expect(tree.find("time").text()).toBe("a minute ago");
+
+    advanceTo(new Date(Date.UTC(2018, 7, 14, 18, 36, 41)));
+    jest.advanceTimersByTime(61 * 1000);
+    expect(tree.find("time").text()).toBe("an hour ago");
+
+    advanceTo(new Date(Date.UTC(2018, 7, 14, 19, 36, 41)));
+    jest.advanceTimersByTime(61 * 1000);
+    expect(tree.find("time").text()).toBe("2 hours ago");
+  });
 });