diff --git a/package-lock.json b/package-lock.json
index 9902de8..94ac2c3 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -34,7 +34,7 @@
         "jest": "^30.3.0",
         "rimraf": "^6.1.3",
         "ts-jest": "^29.4.6",
-        "typescript": "^5.4.5"
+        "typescript": "^6.0.2"
       }
     },
     "node_modules/@asamuzakjp/css-color": {
@@ -6935,9 +6935,9 @@
       }
     },
     "node_modules/typescript": {
-      "version": "5.9.3",
-      "resolved": "https://registry.npmjs.org/typescript/-/typescript-5.9.3.tgz",
-      "integrity": "sha512-jl1vZzPDinLr9eUt3J/t7V6FgNEw9QjvBPdysz9KfQDD41fQrC2Y4vKQdiaUpFT4bXlb1RHhLpp8wtm6M5TgSw==",
+      "version": "6.0.2",
+      "resolved": "https://registry.npmjs.org/typescript/-/typescript-6.0.2.tgz",
+      "integrity": "sha512-bGdAIrZ0wiGDo5l8c++HWtbaNCWTS4UTv7RaTH/ThVIgjkveJt83m74bBHMJkuCbslY8ixgLBVZJIOiQlQTjfQ==",
       "dev": true,
       "license": "Apache-2.0",
       "bin": {
diff --git a/package.json b/package.json
index 20bb49f..21f3a8c 100644
--- a/package.json
+++ b/package.json
@@ -54,7 +54,7 @@
     "jest": "^30.3.0",
     "rimraf": "^6.1.3",
     "ts-jest": "^29.4.6",
-    "typescript": "^5.4.5"
+    "typescript": "^6.0.2"
   },
   "jest": {
     "preset": "ts-jest",