diff --git a/bun.lock b/bun.lock
index 5d45e4e41..628898fcd 100644
--- a/bun.lock
+++ b/bun.lock
@@ -70,7 +70,7 @@
         "ts-node": "10.9.2",
         "ts-runtime-checks": "0.6.3",
         "type-predicate-generator": "1.0.4",
-        "typescript": "5.8.3",
+        "typescript": "5.9.2",
         "typia": "9.6.1",
         "undici": "7.13.0",
         "unknownutil": "3.18.1",
@@ -1510,7 +1510,7 @@
 
     "type-predicate-generator": ["type-predicate-generator@1.0.4", "", { "dependencies": { "command-line-args": "^6.0.1", "typescript": ">=5.7.0 <5.8.0" }, "bin": { "type-predicate-generator": "dist/cli.js" } }, "sha512-uzLbDge84er1w0RQHAoeRoP/JXPmTjDzoDo6F7rWQ7FrKbNem/eWmUvvPwBFzYJ/5tXBMEFxIPTmeWEeHJvIcQ=="],
 
-    "typescript": ["typescript@5.8.3", "", { "bin": { "tsc": "bin/tsc", "tsserver": "bin/tsserver" } }, "sha512-p1diW6TqL9L07nNxvRMM7hMMw4c5XOo/1ibL4aAIGmSAt9slTE1Xgw5KWuof2uTOvCg9BY7ZRi+GaF+7sfgPeQ=="],
+    "typescript": ["typescript@5.9.2", "", { "bin": { "tsc": "bin/tsc", "tsserver": "bin/tsserver" } }, "sha512-CWBzXQrc/qOkhidw1OzBTQuYRbfyxDXJMVJ1XNwUHGROVmuaeiEm3OslpZ1RV96d7SKKjZKrSJu3+t/xlw3R9A=="],
 
     "typia": ["typia@9.6.1", "", { "dependencies": { "@samchon/openapi": "^4.6.0", "@standard-schema/spec": "^1.0.0", "commander": "^10.0.0", "comment-json": "^4.2.3", "inquirer": "^8.2.5", "package-manager-detector": "^0.2.0", "randexp": "^0.5.3" }, "peerDependencies": { "typescript": ">=4.8.0 <5.10.0" }, "bin": { "typia": "lib/executable/typia.js" } }, "sha512-AXW1SeeGeOdG92tyTll+9kr4w/AsD+LgwNZK3RL4A5ZMjqvoVmdv0slPNWxV5B+obCCotgIWhBbNrft8nUPOog=="],
 
diff --git a/package-lock.json b/package-lock.json
index 2f0f4dfe4..66a00d223 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -75,7 +75,7 @@
         "ts-node": "10.9.2",
         "ts-runtime-checks": "0.6.3",
         "type-predicate-generator": "1.0.4",
-        "typescript": "5.8.3",
+        "typescript": "5.9.2",
         "typia": "9.6.1",
         "undici": "7.13.0",
         "unknownutil": "3.18.1",
@@ -9246,9 +9246,9 @@
       }
     },
     "node_modules/typescript": {
-      "version": "5.8.3",
-      "resolved": "https://registry.npmjs.org/typescript/-/typescript-5.8.3.tgz",
-      "integrity": "sha512-p1diW6TqL9L07nNxvRMM7hMMw4c5XOo/1ibL4aAIGmSAt9slTE1Xgw5KWuof2uTOvCg9BY7ZRi+GaF+7sfgPeQ==",
+      "version": "5.9.2",
+      "resolved": "https://registry.npmjs.org/typescript/-/typescript-5.9.2.tgz",
+      "integrity": "sha512-CWBzXQrc/qOkhidw1OzBTQuYRbfyxDXJMVJ1XNwUHGROVmuaeiEm3OslpZ1RV96d7SKKjZKrSJu3+t/xlw3R9A==",
       "bin": {
         "tsc": "bin/tsc",
         "tsserver": "bin/tsserver"
@@ -16997,9 +16997,9 @@
       }
     },
     "typescript": {
-      "version": "5.8.3",
-      "resolved": "https://registry.npmjs.org/typescript/-/typescript-5.8.3.tgz",
-      "integrity": "sha512-p1diW6TqL9L07nNxvRMM7hMMw4c5XOo/1ibL4aAIGmSAt9slTE1Xgw5KWuof2uTOvCg9BY7ZRi+GaF+7sfgPeQ=="
+      "version": "5.9.2",
+      "resolved": "https://registry.npmjs.org/typescript/-/typescript-5.9.2.tgz",
+      "integrity": "sha512-CWBzXQrc/qOkhidw1OzBTQuYRbfyxDXJMVJ1XNwUHGROVmuaeiEm3OslpZ1RV96d7SKKjZKrSJu3+t/xlw3R9A=="
     },
     "typia": {
       "version": "9.6.1",
diff --git a/package.json b/package.json
index 647514392..66ec87eed 100644
--- a/package.json
+++ b/package.json
@@ -94,7 +94,7 @@
     "ts-node": "10.9.2",
     "ts-runtime-checks": "0.6.3",
     "type-predicate-generator": "1.0.4",
-    "typescript": "5.8.3",
+    "typescript": "5.9.2",
     "typia": "9.6.1",
     "undici": "7.13.0",
     "unknownutil": "3.18.1",