diff --git a/server/lib/scanners/jellyfin/jellyfin.test.ts b/server/lib/scanners/jellyfin/jellyfin.test.ts
index 51f97d09a8..47c826637a 100644
--- a/server/lib/scanners/jellyfin/jellyfin.test.ts
+++ b/server/lib/scanners/jellyfin/jellyfin.test.ts
@@ -18,6 +18,7 @@ import { User } from '@server/entity/User';
 import type { Library } from '@server/lib/settings';
 import { getSettings } from '@server/lib/settings';
 import { setupTestDb } from '@server/test/db';
+import { runWithMockTimers } from '@server/test/runWithMockTimers';
 import assert from 'node:assert/strict';
 import { beforeEach, describe, it } from 'node:test';
 
@@ -333,7 +334,7 @@ describe('Jellyfin Scanner', () => {
         return [];
       };
 
-      await jellyfinFullScanner.run();
+      await runWithMockTimers(jellyfinFullScanner.run());
 
       const updated = await mediaRepository.findOneOrFail({
         where: { tmdbId: 5000 },
@@ -411,7 +412,7 @@ describe('Jellyfin Scanner', () => {
         return [];
       };
 
-      await jellyfinFullScanner.run();
+      await runWithMockTimers(jellyfinFullScanner.run());
 
       const updated = await mediaRepository.findOneOrFail({
         where: { tmdbId: 5001 },
@@ -488,7 +489,7 @@ describe('Jellyfin Scanner', () => {
         return [];
       };
 
-      await jellyfinFullScanner.run();
+      await runWithMockTimers(jellyfinFullScanner.run());
 
       const updated = await mediaRepository.findOneOrFail({
         where: { tmdbId: 5002 },
diff --git a/server/lib/scanners/radarr/radarr.test.ts b/server/lib/scanners/radarr/radarr.test.ts
index 7faeed97f1..0f14c86de3 100644
--- a/server/lib/scanners/radarr/radarr.test.ts
+++ b/server/lib/scanners/radarr/radarr.test.ts
@@ -13,6 +13,7 @@ import { radarrScanner } from '@server/lib/scanners/radarr';
 import type { RadarrSettings } from '@server/lib/settings';
 import { getSettings } from '@server/lib/settings';
 import { setupTestDb } from '@server/test/db';
+import { runWithMockTimers } from '@server/test/runWithMockTimers';
 import assert from 'node:assert/strict';
 import { beforeEach, describe, it, mock } from 'node:test';
 
@@ -93,7 +94,7 @@ describe('Radarr Scanner', () => {
         fakeRadarrMovie({ monitored: false, hasFile: false }),
       ];
 
-      await radarrScanner.run();
+      await runWithMockTimers(radarrScanner.run());
 
       const updated = await mediaRepository.findOneOrFail({
         where: { tmdbId: 550 },
@@ -109,7 +110,7 @@ describe('Radarr Scanner', () => {
         fakeRadarrMovie({ tmdbId: 777, monitored: false, hasFile: false }),
       ];
 
-      await radarrScanner.run();
+      await runWithMockTimers(radarrScanner.run());
 
       const media = await mediaRepository.findOne({
         where: { tmdbId: 777 },
@@ -131,7 +132,7 @@ describe('Radarr Scanner', () => {
         fakeRadarrMovie({ tmdbId: 551, monitored: true, hasFile: true }),
       ];
 
-      await radarrScanner.run();
+      await runWithMockTimers(radarrScanner.run());
 
       const updated = await mediaRepository.findOneOrFail({
         where: { tmdbId: 551 },
@@ -153,7 +154,7 @@ describe('Radarr Scanner', () => {
         fakeRadarrMovie({ tmdbId: 552, monitored: true, hasFile: false }),
       ];
 
-      await radarrScanner.run();
+      await runWithMockTimers(radarrScanner.run());
 
       const updated = await mediaRepository.findOneOrFail({
         where: { tmdbId: 552 },
@@ -175,7 +176,7 @@ describe('Radarr Scanner', () => {
         fakeRadarrMovie({ tmdbId: 553, monitored: true, hasFile: false }),
       ];
 
-      await radarrScanner.run();
+      await runWithMockTimers(radarrScanner.run());
 
       const updated = await mediaRepository.findOneOrFail({
         where: { tmdbId: 553 },
@@ -197,7 +198,7 @@ describe('Radarr Scanner', () => {
         fakeRadarrMovie({ tmdbId: 554, monitored: false, hasFile: true }),
       ];
 
-      await radarrScanner.run();
+      await runWithMockTimers(radarrScanner.run());
 
       const updated = await mediaRepository.findOneOrFail({
         where: { tmdbId: 554 },
@@ -223,7 +224,7 @@ describe('Radarr Scanner', () => {
 
       getMoviesImpl = async () => [];
 
-      await radarrScanner.run();
+      await runWithMockTimers(radarrScanner.run());
 
       const updated = await mediaRepository.findOneOrFail({
         where: { tmdbId: 950 },
@@ -243,7 +244,7 @@ describe('Radarr Scanner', () => {
       configureRadarr([{ syncEnabled: true }]);
       getMoviesImpl = async () => [fakeRadarrMovie({ tmdbId: 1, id: 99 })];
 
-      await radarrScanner.run();
+      await runWithMockTimers(radarrScanner.run());
 
       const updated = await mediaRepository.findOneOrFail({
         where: { tmdbId: 999 },
@@ -263,7 +264,7 @@ describe('Radarr Scanner', () => {
       configureRadarr([{ syncEnabled: true }]);
       getMoviesImpl = async () => [];
 
-      await radarrScanner.run();
+      await runWithMockTimers(radarrScanner.run());
 
       const updated = await mediaRepository.findOneOrFail({
         where: { tmdbId: 888 },
@@ -285,7 +286,7 @@ describe('Radarr Scanner', () => {
         fakeRadarrMovie({ tmdbId: 700, monitored: true, hasFile: false }),
       ];
 
-      await radarrScanner.run();
+      await runWithMockTimers(radarrScanner.run());
 
       const updated = await mediaRepository.findOneOrFail({
         where: { tmdbId: 700 },
@@ -306,7 +307,7 @@ describe('Radarr Scanner', () => {
       configureRadarr([{ syncEnabled: true }]);
       getMoviesImpl = async () => [];
 
-      await radarrScanner.run();
+      await runWithMockTimers(radarrScanner.run());
 
       const updated = await mediaRepository.findOneOrFail({
         where: { tmdbId: 800 },
@@ -344,7 +345,7 @@ describe('Radarr Scanner', () => {
         return [fakeRadarrMovie({ tmdbId: 903, id: 11 })];
       };
 
-      await radarrScanner.run();
+      await runWithMockTimers(radarrScanner.run());
 
       const updatedOrphan = await mediaRepository.findOneOrFail({
         where: { tmdbId: 901 },
@@ -372,7 +373,7 @@ describe('Radarr Scanner', () => {
       configureRadarr([{ syncEnabled: true, is4k: true }]);
       getMoviesImpl = async () => [fakeRadarrMovie({ tmdbId: 1, id: 99 })];
 
-      await radarrScanner.run();
+      await runWithMockTimers(radarrScanner.run());
 
       const updated = await mediaRepository.findOneOrFail({
         where: { tmdbId: 960 },
@@ -393,7 +394,7 @@ describe('Radarr Scanner', () => {
       configureRadarr([{ syncEnabled: true, is4k: true }]);
       getMoviesImpl = async () => [];
 
-      await radarrScanner.run();
+      await runWithMockTimers(radarrScanner.run());
 
       const updated = await mediaRepository.findOneOrFail({
         where: { tmdbId: 961 },
@@ -436,7 +437,7 @@ describe('Radarr Scanner', () => {
       configureRadarr([{ syncEnabled: true }]);
       getMoviesImpl = async () => [fakeRadarrMovie({ tmdbId: 1, id: 99 })];
 
-      await radarrScanner.run();
+      await runWithMockTimers(radarrScanner.run());
 
       const updatedMedia = await mediaRepository.findOneOrFail({
         where: { tmdbId: 1003596 },
@@ -484,7 +485,7 @@ describe('Radarr Scanner', () => {
         fakeRadarrMovie({ tmdbId: 700, monitored: true, hasFile: false }),
       ];
 
-      await radarrScanner.run();
+      await runWithMockTimers(radarrScanner.run());
 
       const updatedRequest = await requestRepository.findOneOrFail({
         where: { id: request.id },
@@ -525,7 +526,7 @@ describe('Radarr Scanner', () => {
       configureRadarr([{ syncEnabled: true }]);
       getMoviesImpl = async () => [];
 
-      await radarrScanner.run();
+      await runWithMockTimers(radarrScanner.run());
 
       const updatedMedia = await mediaRepository.findOneOrFail({
         where: { tmdbId: 1234 },
@@ -621,7 +622,7 @@ describe('Radarr Scanner', () => {
         return [fakeRadarrMovie({ tmdbId: 2, id: 88 })];
       };
 
-      await radarrScanner.run();
+      await runWithMockTimers(radarrScanner.run());
 
       const updatedMedia = await mediaRepository.findOneOrFail({
         where: { tmdbId: 1003598 },
diff --git a/server/lib/scanners/sonarr/sonarr.test.ts b/server/lib/scanners/sonarr/sonarr.test.ts
index e012c979eb..b226176c7b 100644
--- a/server/lib/scanners/sonarr/sonarr.test.ts
+++ b/server/lib/scanners/sonarr/sonarr.test.ts
@@ -15,10 +15,10 @@ import Media from '@server/entity/Media';
 import MediaRequest from '@server/entity/MediaRequest';
 import Season from '@server/entity/Season';
 import { User } from '@server/entity/User';
-import { sonarrScanner } from '@server/lib/scanners/sonarr';
 import type { SonarrSettings } from '@server/lib/settings';
 import { getSettings } from '@server/lib/settings';
 import { setupTestDb } from '@server/test/db';
+import { runWithMockTimers } from '@server/test/runWithMockTimers';
 import assert from 'node:assert/strict';
 import { beforeEach, describe, it, mock } from 'node:test';
 
@@ -103,6 +103,8 @@ Object.defineProperty(TheMovieDb.prototype, 'getTvShow', {
   configurable: true,
 });
 
+import { sonarrScanner } from '@server/lib/scanners/sonarr';
+
 mock.method(MediaRequest, 'sendNotification', async () => undefined);
 
 setupTestDb();
@@ -193,7 +195,7 @@ describe('Sonarr Scanner', () => {
 
       getSeriesImpl = async () => [];
 
-      await sonarrScanner.run();
+      await runWithMockTimers(sonarrScanner.run());
 
       const updated = await mediaRepository.findOneOrFail({
         where: { tmdbId: 1050 },
@@ -223,7 +225,7 @@ describe('Sonarr Scanner', () => {
       configureSonarr([{ syncEnabled: true }]);
       getSeriesImpl = async () => [fakeSonarrSeries({ tvdbId: 999 })];
 
-      await sonarrScanner.run();
+      await runWithMockTimers(sonarrScanner.run());
 
       const updated = await mediaRepository.findOneOrFail({
         where: { tmdbId: 1000 },
@@ -253,7 +255,7 @@ describe('Sonarr Scanner', () => {
       configureSonarr([{ syncEnabled: true }]);
       getSeriesImpl = async () => [];
 
-      await sonarrScanner.run();
+      await runWithMockTimers(sonarrScanner.run());
 
       const updated = await mediaRepository.findOneOrFail({
         where: { tmdbId: 1001 },
@@ -303,7 +305,7 @@ describe('Sonarr Scanner', () => {
       getShowByTvdbIdImpl = async () => fakeTmdbShow(1);
       getTvShowImpl = async () => fakeTmdbShow(1);
 
-      await sonarrScanner.run();
+      await runWithMockTimers(sonarrScanner.run());
 
       const updated = await mediaRepository.findOneOrFail({
         where: { tmdbId: 1 },
@@ -337,7 +339,7 @@ describe('Sonarr Scanner', () => {
       configureSonarr([{ syncEnabled: true }]);
       getSeriesImpl = async () => [fakeSonarrSeries({ tvdbId: 999 })];
 
-      await sonarrScanner.run();
+      await runWithMockTimers(sonarrScanner.run());
 
       const updated = await mediaRepository.findOneOrFail({
         where: { tmdbId: 1003 },
@@ -363,7 +365,7 @@ describe('Sonarr Scanner', () => {
       configureSonarr([{ syncEnabled: true }]);
       getSeriesImpl = async () => [];
 
-      await sonarrScanner.run();
+      await runWithMockTimers(sonarrScanner.run());
 
       const updated = await mediaRepository.findOneOrFail({
         where: { tmdbId: 1004 },
@@ -412,7 +414,7 @@ describe('Sonarr Scanner', () => {
       getShowByTvdbIdImpl = async () => fakeTmdbShow(2);
       getTvShowImpl = async () => fakeTmdbShow(2);
 
-      await sonarrScanner.run();
+      await runWithMockTimers(sonarrScanner.run());
 
       const updatedOrphan = await mediaRepository.findOneOrFail({
         where: { tmdbId: 1010 },
@@ -440,7 +442,7 @@ describe('Sonarr Scanner', () => {
       configureSonarr([{ syncEnabled: true }]);
       getSeriesImpl = async () => [fakeSonarrSeries({ tvdbId: 999 })];
 
-      await sonarrScanner.run();
+      await runWithMockTimers(sonarrScanner.run());
 
       const updated = await mediaRepository.findOneOrFail({
         where: { tmdbId: 1020 },
@@ -471,7 +473,7 @@ describe('Sonarr Scanner', () => {
       configureSonarr([{ syncEnabled: true, is4k: true }]);
       getSeriesImpl = async () => [fakeSonarrSeries({ tvdbId: 999 })];
 
-      await sonarrScanner.run();
+      await runWithMockTimers(sonarrScanner.run());
 
       const updated = await mediaRepository.findOneOrFail({
         where: { tmdbId: 1030 },
@@ -507,7 +509,7 @@ describe('Sonarr Scanner', () => {
       configureSonarr([{ syncEnabled: true, is4k: true }]);
       getSeriesImpl = async () => [fakeSonarrSeries({ tvdbId: 999 })];
 
-      await sonarrScanner.run();
+      await runWithMockTimers(sonarrScanner.run());
 
       const updated = await mediaRepository.findOneOrFail({
         where: { tmdbId: 1031 },
@@ -562,7 +564,7 @@ describe('Sonarr Scanner', () => {
       configureSonarr([{ syncEnabled: true }]);
       getSeriesImpl = async () => [fakeSonarrSeries({ tvdbId: 999 })];
 
-      await sonarrScanner.run();
+      await runWithMockTimers(sonarrScanner.run());
 
       const updatedMedia = await mediaRepository.findOneOrFail({
         where: { tmdbId: 2000 },
@@ -636,7 +638,7 @@ describe('Sonarr Scanner', () => {
       getShowByTvdbIdImpl = async () => fakeTmdbShow(2001);
       getTvShowImpl = async () => fakeTmdbShow(2001);
 
-      await sonarrScanner.run();
+      await runWithMockTimers(sonarrScanner.run());
 
       const updatedRequest = await requestRepository.findOneOrFail({
         where: { id: request.id },
@@ -685,7 +687,7 @@ describe('Sonarr Scanner', () => {
       configureSonarr([{ syncEnabled: true }]);
       getSeriesImpl = async () => [];
 
-      await sonarrScanner.run();
+      await runWithMockTimers(sonarrScanner.run());
 
       const updatedMedia = await mediaRepository.findOneOrFail({
         where: { tmdbId: 2005 },
@@ -804,7 +806,7 @@ describe('Sonarr Scanner', () => {
         tvdbId === 666 ? fakeTmdbShow(2002) : fakeTmdbShow(997);
       getTvShowImpl = async ({ tvId }) => fakeTmdbShow(tvId);
 
-      await sonarrScanner.run();
+      await runWithMockTimers(sonarrScanner.run());
 
       const updatedMedia = await mediaRepository.findOneOrFail({
         where: { tmdbId: 2002 },
diff --git a/server/test/runWithMockTimers.ts b/server/test/runWithMockTimers.ts
new file mode 100644
index 0000000000..2da3da8767
--- /dev/null
+++ b/server/test/runWithMockTimers.ts
@@ -0,0 +1,29 @@
+import { mock } from 'node:test';
+
+export async function runWithMockTimers<T>(
+  runPromise: Promise<T>,
+  tickMs = 4000
+): Promise<T> {
+  mock.timers.enable({ apis: ['setTimeout'] });
+  try {
+    let settled = false;
+    runPromise
+      .catch(() => undefined)
+      .finally(() => {
+        settled = true;
+      });
+    const maxTicks = 100000;
+    for (let i = 0; i < maxTicks && !settled; i++) {
+      await new Promise((resolve) => setImmediate(resolve));
+      mock.timers.tick(tickMs);
+    }
+    if (!settled) {
+      throw new Error(
+        `runWithMockTimers: promise did not settle after ${maxTicks} ticks`
+      );
+    }
+    return await runPromise;
+  } finally {
+    mock.timers.reset();
+  }
+}