diff --git a/package-lock.json b/package-lock.json
index ff71011..6d2d2d3 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -17,7 +17,7 @@
       },
       "devDependencies": {
         "@octokit/openapi": "^19.1.0",
-        "@sinonjs/fake-timers": "^14.0.0",
+        "@sinonjs/fake-timers": "^15.0.0",
         "ava": "^6.4.1",
         "c8": "^10.1.3",
         "dotenv": "^17.2.3",
@@ -25,6 +25,9 @@
         "execa": "^9.6.0",
         "open-cli": "^8.0.0",
         "yaml": "^2.8.1"
+      },
+      "engines": {
+        "node": ">=20"
       }
     },
     "node_modules/@actions/core": {
@@ -911,10 +914,11 @@
       }
     },
     "node_modules/@sinonjs/fake-timers": {
-      "version": "14.0.0",
-      "resolved": "https://registry.npmjs.org/@sinonjs/fake-timers/-/fake-timers-14.0.0.tgz",
-      "integrity": "sha512-QfoXRaUTjMVVn/ZbnD4LS3TPtqOkOdKIYCKldIVPnuClcwRKat6LI2mRZ2s5qiBfO6Fy03An35dSls/2/FEc0Q==",
+      "version": "15.0.0",
+      "resolved": "https://registry.npmjs.org/@sinonjs/fake-timers/-/fake-timers-15.0.0.tgz",
+      "integrity": "sha512-dlUB2oL+hDIYkIq/OWFBDhQAuU6kDey3eeMiYpVb7UXHhkMq/r1HloKXAbJwJZpYWkFWsydLjMqDpueMUEOjXQ==",
       "dev": true,
+      "license": "BSD-3-Clause",
       "dependencies": {
         "@sinonjs/commons": "^3.0.1"
       }
diff --git a/package.json b/package.json
index 9bb77da..13978fc 100644
--- a/package.json
+++ b/package.json
@@ -24,7 +24,7 @@
   },
   "devDependencies": {
     "@octokit/openapi": "^19.1.0",
-    "@sinonjs/fake-timers": "^14.0.0",
+    "@sinonjs/fake-timers": "^15.0.0",
     "ava": "^6.4.1",
     "c8": "^10.1.3",
     "dotenv": "^17.2.3",