diff --git a/package.json b/package.json
index 68be4014b28f..2a7f3f4108de 100644
--- a/package.json
+++ b/package.json
@@ -193,7 +193,7 @@
     "semver": "^7.5.3",
     "shelljs": "^0.10.0",
     "sinon": "^11.0.0",
-    "typescript": "^5.3.3",
+    "typescript": "^5.9.3",
     "webpack": "^5.23.0",
     "webpack-cli": "^4.5.0",
     "yorkie": "^2.0.0"
diff --git a/packages/eslint-config-eslint/package.json b/packages/eslint-config-eslint/package.json
index 1542243ff0e4..f4821486cfdb 100644
--- a/packages/eslint-config-eslint/package.json
+++ b/packages/eslint-config-eslint/package.json
@@ -72,7 +72,7 @@
   "devDependencies": {
     "@arethetypeswrong/cli": "^0.18.0",
     "eslint": ">=10.0.0-alpha.0",
-    "typescript": "^5.7.2"
+    "typescript": "^5.9.3"
   },
   "peerDependencies": {
     "eslint": ">=10.0.0-alpha.0"
diff --git a/tests/lib/types/tsconfig.json b/tests/lib/types/tsconfig.json
index 6ba8469091f2..320af89e2ad6 100644
--- a/tests/lib/types/tsconfig.json
+++ b/tests/lib/types/tsconfig.json
@@ -2,10 +2,7 @@
   "compilerOptions": {
     "module": "node16",
     "lib": ["dom", "es6"],
-    "noImplicitAny": true,
-    "noImplicitThis": true,
-    "strictNullChecks": true,
-    "strictFunctionTypes": true,
+    "strict": true,
     "types": [],
     "noEmit": true,
     "forceConsistentCasingInFileNames": true,