diff --git a/package-lock.json b/package-lock.json
index 86f18b4..fddcaa8 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -14,7 +14,7 @@
       "devDependencies": {
         "@guardian/eslint-config-typescript": "9.0.3",
         "@guardian/prettier": "8.0.1",
-        "@guardian/tsconfig": "0.2.0",
+        "@guardian/tsconfig": "1.0.0",
         "@types/node": "22.9.0",
         "eslint": "^8.57.0",
         "eslint-plugin-prettier": "5.2.1",
@@ -714,9 +714,9 @@
       }
     },
     "node_modules/@guardian/tsconfig": {
-      "version": "0.2.0",
-      "resolved": "https://registry.npmjs.org/@guardian/tsconfig/-/tsconfig-0.2.0.tgz",
-      "integrity": "sha512-RauppalK+cQZDRK6IssVmDSnU/VyqMNuVOxPxhmI03kVRxEdwcmBuRqexHwDbnClVUxW/N9hYLbFNuAb9V/p+A==",
+      "version": "1.0.0",
+      "resolved": "https://registry.npmjs.org/@guardian/tsconfig/-/tsconfig-1.0.0.tgz",
+      "integrity": "sha512-xgajw/jq4lEtQoN72vnmiXeRnejUcd3DgNFmH6TfAbWV6NRK4KC4hAjzKf0H69zBSJMxEfFVfGKP9wBzGII7qg==",
       "dev": true
     },
     "node_modules/@humanwhocodes/config-array": {
diff --git a/package.json b/package.json
index f97e0c5..70d6433 100644
--- a/package.json
+++ b/package.json
@@ -18,7 +18,7 @@
   "devDependencies": {
     "@guardian/eslint-config-typescript": "9.0.3",
     "@guardian/prettier": "8.0.1",
-    "@guardian/tsconfig": "0.2.0",
+    "@guardian/tsconfig": "1.0.0",
     "@types/node": "22.9.0",
     "eslint": "^8.57.0",
     "eslint-plugin-prettier": "5.2.1",