diff --git a/package.json b/package.json
index a9e2d47f8..97a25f867 100644
--- a/package.json
+++ b/package.json
@@ -35,7 +35,7 @@
   "devDependencies": {
     "@eslint/config-helpers": "file:packages/config-helpers",
     "@types/mocha": "^10.0.7",
-    "eslint": "^9.11.1",
+    "eslint": "^9.27.0",
     "eslint-config-eslint": "^11.0.0",
     "got": "^14.4.1",
     "lint-staged": "^15.2.0",
diff --git a/packages/compat/package.json b/packages/compat/package.json
index 49d643e6e..d339c54f0 100644
--- a/packages/compat/package.json
+++ b/packages/compat/package.json
@@ -50,7 +50,7 @@
   "devDependencies": {
     "@eslint/core": "^0.14.0",
     "c8": "^9.1.0",
-    "eslint": "^9.11.0",
+    "eslint": "^9.27.0",
     "mocha": "^10.4.0",
     "rollup": "^4.16.2",
     "typescript": "^5.4.5"
diff --git a/packages/config-helpers/package.json b/packages/config-helpers/package.json
index 78186181c..15f46d429 100644
--- a/packages/config-helpers/package.json
+++ b/packages/config-helpers/package.json
@@ -48,7 +48,7 @@
   "devDependencies": {
     "@eslint/core": "^0.14.0",
     "c8": "^9.1.0",
-    "eslint": "^9.19.0",
+    "eslint": "^9.27.0",
     "mocha": "^10.4.0",
     "rollup": "^4.16.2",
     "rollup-plugin-copy": "^3.5.0",
diff --git a/packages/config-helpers/src/define-config.js b/packages/config-helpers/src/define-config.js
index 00eb8410d..c8928cecb 100644
--- a/packages/config-helpers/src/define-config.js
+++ b/packages/config-helpers/src/define-config.js
@@ -136,7 +136,6 @@ function getPluginMember(id) {
  * @return {Config} The normalized config object.
  */
 function normalizePluginConfig(userNamespace, plugin, config) {
-	// @ts-ignore -- ESLint types aren't updated yet
 	const pluginNamespace = plugin.meta?.namespace;
 
 	// don't do anything if the plugin doesn't have a namespace or rules
diff --git a/packages/migrate-config/package.json b/packages/migrate-config/package.json
index 6e62b1996..2365fcd7b 100644
--- a/packages/migrate-config/package.json
+++ b/packages/migrate-config/package.json
@@ -38,7 +38,7 @@
   "homepage": "https://github.com/eslint/rewrite#readme",
   "devDependencies": {
     "@types/eslint": "^9.6.0",
-    "eslint": "^9.0.0",
+    "eslint": "^9.27.0",
     "mocha": "^10.4.0",
     "typescript": "^5.4.5"
   },
diff --git a/templates/package/package.json b/templates/package/package.json
index 88dd9afcb..72cdf1de8 100644
--- a/templates/package/package.json
+++ b/templates/package/package.json
@@ -48,7 +48,7 @@
   "devDependencies": {
     "@eslint/core": "^0.14.0",
     "c8": "^9.1.0",
-    "eslint": "^9.11.0",
+    "eslint": "^9.27.0",
     "mocha": "^10.4.0",
     "rollup": "^4.16.2",
     "rollup-plugin-copy": "^3.5.0",