diff --git a/package.json b/package.json
index 6730c86cc15..5fea53bb635 100644
--- a/package.json
+++ b/package.json
@@ -77,7 +77,7 @@
     "@percy/ember": "5.0.0",
     "@percy/playwright": "1.0.9",
     "@playwright/test": "1.55.0",
-    "@sinonjs/fake-timers": "14.0.0",
+    "@sinonjs/fake-timers": "15.0.0",
     "@types/node": "22.18.5",
     "@types/sinonjs__fake-timers": "8.1.5",
     "@zestia/ember-auto-focus": "5.1.0",
diff --git a/pnpm-lock.yaml b/pnpm-lock.yaml
index 639053c2e71..5f928b75f12 100644
--- a/pnpm-lock.yaml
+++ b/pnpm-lock.yaml
@@ -114,8 +114,8 @@ importers:
         specifier: 1.55.0
         version: 1.55.0
       '@sinonjs/fake-timers':
-        specifier: 14.0.0
-        version: 14.0.0
+        specifier: 15.0.0
+        version: 15.0.0
       '@types/node':
         specifier: 22.18.5
         version: 22.18.5
@@ -2083,8 +2083,8 @@ packages:
   '@sinonjs/commons@3.0.1':
     resolution: {integrity: sha512-K3mCHKQ9sVh8o1C9cxkwxaOmXoAMlDxC1mYyHrjqOWEcBjYr76t96zL2zlj5dUGZ3HSw240X1qgH3Mjf1yJWpQ==}
 
-  '@sinonjs/fake-timers@14.0.0':
-    resolution: {integrity: sha512-QfoXRaUTjMVVn/ZbnD4LS3TPtqOkOdKIYCKldIVPnuClcwRKat6LI2mRZ2s5qiBfO6Fy03An35dSls/2/FEc0Q==}
+  '@sinonjs/fake-timers@15.0.0':
+    resolution: {integrity: sha512-dlUB2oL+hDIYkIq/OWFBDhQAuU6kDey3eeMiYpVb7UXHhkMq/r1HloKXAbJwJZpYWkFWsydLjMqDpueMUEOjXQ==}
 
   '@socket.io/component-emitter@3.1.2':
     resolution: {integrity: sha512-9BCxFwvbGg/RsZK9tjXd8s4UcwR0MWeFQ1XEKIQVVvAGJyINdrqKMcTRyLoK8Rse1GjzLV9cwjWV1olXRWEXVA==}
@@ -10622,7 +10622,7 @@ snapshots:
     dependencies:
       type-detect: 4.0.8
 
-  '@sinonjs/fake-timers@14.0.0':
+  '@sinonjs/fake-timers@15.0.0':
     dependencies:
       '@sinonjs/commons': 3.0.1