diff --git a/package-lock.json b/package-lock.json
index 7e1da92..17fe588 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -2315,7 +2315,6 @@
       "integrity": "sha512-y2TvuxSZPDyQakkFRPZHKFm+KKVqIisdg9/CZwm9ftvKXLP8NRWj38/ODjNbr43SsoXqNuAisEf1GdCxqWcdBw==",
       "dev": true,
       "license": "Apache-2.0",
-      "peer": true,
       "bin": {
         "tsc": "bin/tsc",
         "tsserver": "bin/tsserver"
@@ -2424,21 +2423,7 @@
         "@types/node": "24.5.2",
         "rimraf": "6.1.3",
         "tsdown": "0.22.0",
-        "typescript": "5.9.3"
-      }
-    },
-    "packages/osc/node_modules/typescript": {
-      "version": "5.9.3",
-      "resolved": "https://registry.npmjs.org/typescript/-/typescript-5.9.3.tgz",
-      "integrity": "sha512-jl1vZzPDinLr9eUt3J/t7V6FgNEw9QjvBPdysz9KfQDD41fQrC2Y4vKQdiaUpFT4bXlb1RHhLpp8wtm6M5TgSw==",
-      "dev": true,
-      "license": "Apache-2.0",
-      "bin": {
-        "tsc": "bin/tsc",
-        "tsserver": "bin/tsserver"
-      },
-      "engines": {
-        "node": ">=14.17"
+        "typescript": "^6.0.3"
       }
     }
   }
diff --git a/packages/osc/package.json b/packages/osc/package.json
index 72e18a7..958587c 100644
--- a/packages/osc/package.json
+++ b/packages/osc/package.json
@@ -34,7 +34,7 @@
     "@types/node": "24.5.2",
     "rimraf": "6.1.3",
     "tsdown": "0.22.0",
-    "typescript": "5.9.3"
+    "typescript": "6.0.3"
   },
   "main": "./dist/index.cjs",
   "module": "./dist/index.mjs"