diff --git a/packages/eslint-plugin/package.json b/packages/eslint-plugin/package.json
index ef05b57014..ce4c400f8a 100644
--- a/packages/eslint-plugin/package.json
+++ b/packages/eslint-plugin/package.json
@@ -46,7 +46,7 @@
     "clean": "rimraf lib"
   },
   "dependencies": {
-    "@typescript-eslint/utils": "^8.17.0"
+    "@typescript-eslint/utils": "^8.18.2"
   },
   "peerDependencies": {
     "eslint": ">=9.16.0"
@@ -55,7 +55,7 @@
     "@cybozu/eslint-config": "^24.0.0-beta.0",
     "@cybozu/license-manager": "^1.2.1",
     "@types/node": "^22.10.2",
-    "@typescript-eslint/rule-tester": "^8.17.0",
+    "@typescript-eslint/rule-tester": "^8.18.2",
     "eslint": "^9.17.0",
     "globals": "^15.14.0",
     "npm-run-all": "^4.1.5",
diff --git a/pnpm-lock.yaml b/pnpm-lock.yaml
index aaa07c0e88..36c3d9854f 100644
--- a/pnpm-lock.yaml
+++ b/pnpm-lock.yaml
@@ -206,7 +206,7 @@ importers:
   packages/eslint-plugin:
     dependencies:
       '@typescript-eslint/utils':
-        specifier: ^8.17.0
+        specifier: ^8.18.2
         version: 8.18.2(eslint@9.17.0)(typescript@5.7.2)
     devDependencies:
       '@cybozu/eslint-config':
@@ -219,7 +219,7 @@ importers:
         specifier: ^22.10.2
         version: 22.10.2
       '@typescript-eslint/rule-tester':
-        specifier: ^8.17.0
+        specifier: ^8.18.2
         version: 8.18.2(eslint@9.17.0)(typescript@5.7.2)
       eslint:
         specifier: ^9.17.0