diff --git a/package.json b/package.json
index 5975450d7..8f7c1be68 100644
--- a/package.json
+++ b/package.json
@@ -52,7 +52,7 @@
     "tsdown": "^0.15.9",
     "turbo": "^2.9.4",
     "typescript": "^5.9.3",
-    "typia": "^9.7.2",
+    "typia": "^12.1.1",
     "vitest": "^4.1.0-beta.1"
   },
   "packageManager": "yarn@4.12.0"
diff --git a/packages/typia-validator/package.json b/packages/typia-validator/package.json
index 9d2eeb2ab..8e5d6ddfb 100644
--- a/packages/typia-validator/package.json
+++ b/packages/typia-validator/package.json
@@ -59,7 +59,7 @@
     "hono": "^4.11.5",
     "tsdown": "^0.15.9",
     "typescript": "^5.9.3",
-    "typia": "^9.7.2",
+    "typia": "^12.1.1",
     "vitest": "^4.1.0-beta.1"
   }
 }
diff --git a/yarn.lock b/yarn.lock
index a6ea0d613..14c34b5fb 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -2489,7 +2489,7 @@ __metadata:
     hono: "npm:^4.11.5"
     tsdown: "npm:^0.15.9"
     typescript: "npm:^5.9.3"
-    typia: "npm:^9.7.2"
+    typia: "npm:^12.1.1"
     vitest: "npm:^4.1.0-beta.1"
   peerDependencies:
     hono: ">=3.9.0"
@@ -4799,13 +4799,6 @@ __metadata:
   languageName: node
   linkType: hard
 
-"@samchon/openapi@npm:^4.7.1":
-  version: 4.7.1
-  resolution: "@samchon/openapi@npm:4.7.1"
-  checksum: 10c0/311a2b8030fb21e1ffc9def70b723ca0c83abf6740b0949ac86ad2e22b6e36d55dd52ff53977e08d05ca92c9b3ebc4975e3a916cc5fd721abf6232a4aba1a5b7
-  languageName: node
-  linkType: hard
-
 "@sentry/core@npm:8.9.2":
   version: 8.9.2
   resolution: "@sentry/core@npm:8.9.2"
@@ -5353,6 +5346,43 @@ __metadata:
   languageName: node
   linkType: hard
 
+"@typia/core@npm:^12.1.1":
+  version: 12.1.1
+  resolution: "@typia/core@npm:12.1.1"
+  dependencies:
+    "@typia/interface": "npm:^12.1.1"
+    "@typia/utils": "npm:^12.1.1"
+  checksum: 10c0/1cc4fc245e5a8f04dffa6dfee438a00bf93f67ea0a840c38c253014b29c4972a8f985e6bcf5e7b688975c4af07a52d2275bf79e1eaa4abaca2e4c1dee256f0d3
+  languageName: node
+  linkType: hard
+
+"@typia/interface@npm:^12.1.1":
+  version: 12.1.1
+  resolution: "@typia/interface@npm:12.1.1"
+  checksum: 10c0/9a26fc73d9774eee7ff1c00ddc4ed13427924084889b09dc0f57554828116e7b93d4783c828853d123aede34b1bf5ca814a9a103270567ebdf86d3e8f358f223
+  languageName: node
+  linkType: hard
+
+"@typia/transform@npm:^12.1.1":
+  version: 12.1.1
+  resolution: "@typia/transform@npm:12.1.1"
+  dependencies:
+    "@typia/core": "npm:^12.1.1"
+    "@typia/interface": "npm:^12.1.1"
+    "@typia/utils": "npm:^12.1.1"
+  checksum: 10c0/649eea98111405165cc0f8ad24f79d65be070b456b4030c1515856da0f1ec48ed2ac7466cd69503192e67887597761d92f56df3aa597d2f8a02ce8523db7c17e
+  languageName: node
+  linkType: hard
+
+"@typia/utils@npm:^12.1.1":
+  version: 12.1.1
+  resolution: "@typia/utils@npm:12.1.1"
+  dependencies:
+    "@typia/interface": "npm:^12.1.1"
+  checksum: 10c0/fc652764ff7a824bbd290b209bbbd43ef90e3be833bda8fa81b4e68af73ea0d017ff0d143666ec38ab340ed790e2efff8305e8f2b685577a2fc7a273f160529a
+  languageName: node
+  linkType: hard
+
 "@ungap/structured-clone@npm:^1.0.0":
   version: 1.3.0
   resolution: "@ungap/structured-clone@npm:1.3.0"
@@ -9846,7 +9876,7 @@ __metadata:
     tsdown: "npm:^0.15.9"
     turbo: "npm:^2.9.4"
     typescript: "npm:^5.9.3"
-    typia: "npm:^9.7.2"
+    typia: "npm:^12.1.1"
     vitest: "npm:^4.1.0-beta.1"
   languageName: unknown
   linkType: soft
@@ -16034,22 +16064,25 @@ __metadata:
   languageName: node
   linkType: hard
 
-"typia@npm:^9.7.2":
-  version: 9.7.2
-  resolution: "typia@npm:9.7.2"
+"typia@npm:^12.1.1":
+  version: 12.1.1
+  resolution: "typia@npm:12.1.1"
   dependencies:
-    "@samchon/openapi": "npm:^4.7.1"
     "@standard-schema/spec": "npm:^1.0.0"
+    "@typia/core": "npm:^12.1.1"
+    "@typia/interface": "npm:^12.1.1"
+    "@typia/transform": "npm:^12.1.1"
+    "@typia/utils": "npm:^12.1.1"
     commander: "npm:^10.0.0"
     comment-json: "npm:^4.2.3"
     inquirer: "npm:^8.2.5"
     package-manager-detector: "npm:^0.2.0"
     randexp: "npm:^0.5.3"
   peerDependencies:
-    typescript: ">=4.8.0 <5.10.0"
+    typescript: ">=4.8.0 <7.0.0"
   bin:
     typia: lib/executable/typia.js
-  checksum: 10c0/1b19baddfed46c5032da1b05b92636e13a56572764778913050cfb9690e6b7e833fc220f3bfcfc29502905e0e7aa09c5a8ace14dc8177b88a989d33bf215f6d6
+  checksum: 10c0/cd0b1e45449b9225efb8cbbc803f99b538e8b58f615d0366c6bc6d9a7c11909d775f6bff43c80def2a02797a86d5e48e3dfc5a947ffe862a0a0563d36a55f1b8
   languageName: node
   linkType: hard