diff --git a/package-lock.json b/package-lock.json
index f6c74d0..6fba903 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -25,16 +25,18 @@
       "devDependencies": {
         "@eslint/json": "^0.13.2",
         "@eslint/markdown": "^7.5.0",
-        "@types/google-apps-script": "^2.0.7",
+        "@types/google-apps-script": "^2.0.8",
         "@types/node": "^24.9.1",
         "eslint": "^9.38.0",
         "eslint-config-prettier": "^10.1.8",
         "eslint-plugin-googleappsscript": "^1.0.5",
         "husky": "^9.1.7",
         "prettier": "^3.6.2",
-        "typescript": "^5.9.3",
         "typescript-eslint": "^8.46.2",
         "vitest": "^4.0.4"
+      },
+      "peerDependencies": {
+        "typescript": "^5.9.3"
       }
     },
     "node_modules/@esbuild/aix-ppc64": {
@@ -1175,9 +1177,9 @@
       "license": "MIT"
     },
     "node_modules/@types/google-apps-script": {
-      "version": "2.0.7",
-      "resolved": "https://registry.npmjs.org/@types/google-apps-script/-/google-apps-script-2.0.7.tgz",
-      "integrity": "sha512-Yd5ham8GJNPoKSMt9Ep+B5IJzmfsvSNkOF1DWGQDyz66+1O/Jw/TEe6fltJcTKRvNlCCH5ZaGmmYDOgadA8QYQ==",
+      "version": "2.0.8",
+      "resolved": "https://registry.npmjs.org/@types/google-apps-script/-/google-apps-script-2.0.8.tgz",
+      "integrity": "sha512-mGPmzzdgBu1DlwrjOhFQ8u0se6AF/z4OpaTzOGwNKxwXZjE7J+IssfE3oL24j/S/p6aFiSTIptHZvbyqeZD8vA==",
       "dev": true,
       "license": "MIT"
     },
@@ -4024,7 +4026,6 @@
       "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",
       "peer": true,
       "bin": {
diff --git a/package.json b/package.json
index a7a3af6..611a6c9 100644
--- a/package.json
+++ b/package.json
@@ -53,7 +53,7 @@
   "devDependencies": {
     "@eslint/json": "^0.13.2",
     "@eslint/markdown": "^7.5.0",
-    "@types/google-apps-script": "^2.0.7",
+    "@types/google-apps-script": "^2.0.8",
     "@types/node": "^24.9.1",
     "eslint": "^9.38.0",
     "eslint-config-prettier": "^10.1.8",