diff --git a/eslint.config.js b/eslint.config.js
index 305bdcb5..b2e3b2ea 100644
--- a/eslint.config.js
+++ b/eslint.config.js
@@ -4,6 +4,7 @@ import markdown from "@eslint/markdown";
 import json from "@eslint/json";
 import js from "@eslint/js";
 import globals from "globals";
+import noOnlyTests from "eslint-plugin-no-only-tests";
 
 export default [
   {
@@ -39,6 +40,10 @@ export default [
       ...js.configs.recommended.rules,
       // turn this off for Prettier
       "no-irregular-whitespace": "off",
+      "no-only-tests/no-only-tests": "error",
+    },
+    plugins: {
+      "no-only-tests": noOnlyTests,
     },
   },
   {
diff --git a/package-lock.json b/package-lock.json
index 26ca1fa2..6743c3e8 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -36,6 +36,7 @@
         "@web/test-runner-junit-reporter": "^0.7.1",
         "eslint": "^9.11.1",
         "eslint-config-prettier": "^9.1.0",
+        "eslint-plugin-no-only-tests": "^3.3.0",
         "globals": "^15.10.0",
         "http-server": "^14.1.1",
         "husky": "^9.0.11",
@@ -7973,6 +7974,15 @@
         "eslint": ">=7.0.0"
       }
     },
+    "node_modules/eslint-plugin-no-only-tests": {
+      "version": "3.3.0",
+      "resolved": "https://registry.npmjs.org/eslint-plugin-no-only-tests/-/eslint-plugin-no-only-tests-3.3.0.tgz",
+      "integrity": "sha512-brcKcxGnISN2CcVhXJ/kEQlNa0MEfGRtwKtWA16SkqXHKitaKIMrfemJKLKX1YqDU5C/5JY3PvZXd5jEW04e0Q==",
+      "dev": true,
+      "engines": {
+        "node": ">=5.0.0"
+      }
+    },
     "node_modules/eslint-scope": {
       "version": "8.1.0",
       "resolved": "https://registry.npmjs.org/eslint-scope/-/eslint-scope-8.1.0.tgz",
diff --git a/package.json b/package.json
index 52f13a97..73d83b27 100644
--- a/package.json
+++ b/package.json
@@ -60,6 +60,7 @@
     "@web/test-runner-junit-reporter": "^0.7.1",
     "eslint": "^9.11.1",
     "eslint-config-prettier": "^9.1.0",
+    "eslint-plugin-no-only-tests": "^3.3.0",
     "globals": "^15.10.0",
     "http-server": "^14.1.1",
     "husky": "^9.0.11",
diff --git a/src/components/side-nav/side-nav.spec.js b/src/components/side-nav/side-nav.spec.js
index 33e48b49..9ed66291 100644
--- a/src/components/side-nav/side-nav.spec.js
+++ b/src/components/side-nav/side-nav.spec.js
@@ -14,7 +14,7 @@ const ROUTE = "/guides/";
 const HEADING = "Guides";
 const CURRENT_ROUTE = "/guides/getting-started/key-concepts/";
 
-describe.only("Components/Side Nav", () => {
+describe("Components/Side Nav", () => {
   let nav;
   let expectedGuidesContent = [];
   let expectedHeadingsContent = [];