diff --git a/__tests__/firestore.setup.ts b/__tests__/firestore.setup.ts
index 0417f2d362..e96140ccb3 100644
--- a/__tests__/firestore.setup.ts
+++ b/__tests__/firestore.setup.ts
@@ -9,11 +9,13 @@ import {
 import { afterAll, beforeAll } from '@jest/globals';
 import { doc, setDoc } from 'firebase/firestore';
 import { setup, teardown } from 'jest-dev-server';
+import { SpawndChildProcess } from 'spawnd';
 
 let testEnv: RulesTestEnvironment;
+let servers: SpawndChildProcess[] = [];
 
 beforeAll(async () => {
-  await setup({
+  servers = await setup({
     command: 'npx firebase emulators:start --only firestore',
     launchTimeout: 30000,
     port: 8080,
@@ -22,7 +24,7 @@ beforeAll(async () => {
 }, 30000);
 
 afterAll(async () => {
-  await teardown();
+  await teardown(servers);
 });
 
 interface SetupApp {
diff --git a/package-lock.json b/package-lock.json
index 1434868ec9..1239c2e7ed 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -72,7 +72,7 @@
         "firebase-admin": "^11.9.0",
         "firebase-tools": "^12.5.2",
         "jest": "^29.5.0",
-        "jest-dev-server": "^7.0.1",
+        "jest-dev-server": "^9.0.0",
         "jest-environment-jsdom": "^29.5.0",
         "markdownlint": "^0.30.0",
         "markdownlint-cli": "^0.35.0",
@@ -15355,21 +15355,21 @@
       "dev": true
     },
     "node_modules/jest-dev-server": {
-      "version": "7.0.1",
-      "resolved": "https://registry.npmjs.org/jest-dev-server/-/jest-dev-server-7.0.1.tgz",
-      "integrity": "sha512-0GXo3KEtPU+WaDNYYZIieS9wrdNk5CwpB7oi2tiMIUxTKf3CzWFy6zZE/NN6TgAdxUqjFg7IzZIOBibczzGalA==",
+      "version": "9.0.0",
+      "resolved": "https://registry.npmjs.org/jest-dev-server/-/jest-dev-server-9.0.0.tgz",
+      "integrity": "sha512-N43EDJLy3JBHZwtTxqHy+6lxu7Zw5PLD8Jzq2+ePV3v90hQc4UoUA/fnxoKdTCgZY3P1qPl6Zmj8m/886APxoQ==",
       "dev": true,
       "dependencies": {
         "chalk": "^4.1.2",
         "cwd": "^0.10.0",
         "find-process": "^1.4.7",
         "prompts": "^2.4.2",
-        "spawnd": "^7.0.0",
+        "spawnd": "^9.0.0",
         "tree-kill": "^1.2.2",
         "wait-on": "^7.0.1"
       },
       "engines": {
-        "node": ">=14.0.0"
+        "node": ">=16"
       }
     },
     "node_modules/jest-diff": {
@@ -19055,17 +19055,28 @@
       "dev": true
     },
     "node_modules/spawnd": {
-      "version": "7.0.0",
-      "resolved": "https://registry.npmjs.org/spawnd/-/spawnd-7.0.0.tgz",
-      "integrity": "sha512-TU/M4qYmigdeET4HTR7l9nqySTTvStWM6rW8QyixXRxWn90E718y5Q31ZVXyG7VEqT6oo6EUvE9zk4rGU39HbA==",
+      "version": "9.0.0",
+      "resolved": "https://registry.npmjs.org/spawnd/-/spawnd-9.0.0.tgz",
+      "integrity": "sha512-YJRGf0loiLsHTQZztPSI5pb9RmlKE5y6Nvxko6dNtGrkra+1BaJ7PN86GQ1/2ldLZgMhMG9ITopkDJ+7lHkBYw==",
       "dev": true,
       "dependencies": {
-        "exit": "^0.1.2",
-        "signal-exit": "^3.0.7",
+        "signal-exit": "^4.0.2",
         "tree-kill": "^1.2.2"
       },
       "engines": {
-        "node": ">=14.0.0"
+        "node": ">=16"
+      }
+    },
+    "node_modules/spawnd/node_modules/signal-exit": {
+      "version": "4.1.0",
+      "resolved": "https://registry.npmjs.org/signal-exit/-/signal-exit-4.1.0.tgz",
+      "integrity": "sha512-bzyZ1e88w9O1iNJbKnOlvYTrWPDl46O1bG0D3XInv+9tkPrxrN8jUUTiFlDkkmKWgn1M6CfIA13SuGqOa9Korw==",
+      "dev": true,
+      "engines": {
+        "node": ">=14"
+      },
+      "funding": {
+        "url": "https://github.com/sponsors/isaacs"
       }
     },
     "node_modules/spdx-correct": {
@@ -32729,16 +32740,16 @@
       }
     },
     "jest-dev-server": {
-      "version": "7.0.1",
-      "resolved": "https://registry.npmjs.org/jest-dev-server/-/jest-dev-server-7.0.1.tgz",
-      "integrity": "sha512-0GXo3KEtPU+WaDNYYZIieS9wrdNk5CwpB7oi2tiMIUxTKf3CzWFy6zZE/NN6TgAdxUqjFg7IzZIOBibczzGalA==",
+      "version": "9.0.0",
+      "resolved": "https://registry.npmjs.org/jest-dev-server/-/jest-dev-server-9.0.0.tgz",
+      "integrity": "sha512-N43EDJLy3JBHZwtTxqHy+6lxu7Zw5PLD8Jzq2+ePV3v90hQc4UoUA/fnxoKdTCgZY3P1qPl6Zmj8m/886APxoQ==",
       "dev": true,
       "requires": {
         "chalk": "^4.1.2",
         "cwd": "^0.10.0",
         "find-process": "^1.4.7",
         "prompts": "^2.4.2",
-        "spawnd": "^7.0.0",
+        "spawnd": "^9.0.0",
         "tree-kill": "^1.2.2",
         "wait-on": "^7.0.1"
       }
@@ -35546,14 +35557,21 @@
       "dev": true
     },
     "spawnd": {
-      "version": "7.0.0",
-      "resolved": "https://registry.npmjs.org/spawnd/-/spawnd-7.0.0.tgz",
-      "integrity": "sha512-TU/M4qYmigdeET4HTR7l9nqySTTvStWM6rW8QyixXRxWn90E718y5Q31ZVXyG7VEqT6oo6EUvE9zk4rGU39HbA==",
+      "version": "9.0.0",
+      "resolved": "https://registry.npmjs.org/spawnd/-/spawnd-9.0.0.tgz",
+      "integrity": "sha512-YJRGf0loiLsHTQZztPSI5pb9RmlKE5y6Nvxko6dNtGrkra+1BaJ7PN86GQ1/2ldLZgMhMG9ITopkDJ+7lHkBYw==",
       "dev": true,
       "requires": {
-        "exit": "^0.1.2",
-        "signal-exit": "^3.0.7",
+        "signal-exit": "^4.0.2",
         "tree-kill": "^1.2.2"
+      },
+      "dependencies": {
+        "signal-exit": {
+          "version": "4.1.0",
+          "resolved": "https://registry.npmjs.org/signal-exit/-/signal-exit-4.1.0.tgz",
+          "integrity": "sha512-bzyZ1e88w9O1iNJbKnOlvYTrWPDl46O1bG0D3XInv+9tkPrxrN8jUUTiFlDkkmKWgn1M6CfIA13SuGqOa9Korw==",
+          "dev": true
+        }
       }
     },
     "spdx-correct": {
diff --git a/package.json b/package.json
index b03815c957..befcfa600e 100644
--- a/package.json
+++ b/package.json
@@ -98,7 +98,7 @@
     "firebase-admin": "^11.9.0",
     "firebase-tools": "^12.5.2",
     "jest": "^29.5.0",
-    "jest-dev-server": "^7.0.1",
+    "jest-dev-server": "^9.0.0",
     "jest-environment-jsdom": "^29.5.0",
     "markdownlint": "^0.30.0",
     "markdownlint-cli": "^0.35.0",