diff --git a/composer.json b/composer.json
index 044e54c..4b9aa22 100644
--- a/composer.json
+++ b/composer.json
@@ -1,7 +1,7 @@
 {
   "name": "kiwilan/typescriptable-laravel",
   "description": "PHP package for Laravel to type Eloquent models, routes, Spatie Settings with autogenerated TypeScript. If you want to use some helpers with Inertia, you can install associated NPM package.",
-  "version": "1.11.0",
+  "version": "1.11.01",
   "keywords": [
     "kiwilan",
     "laravel",
diff --git a/lib/package.json b/lib/package.json
index ebf8321..b8bee64 100644
--- a/lib/package.json
+++ b/lib/package.json
@@ -1,11 +1,11 @@
 {
   "name": "@kiwilan/typescriptable-laravel",
   "type": "module",
-  "version": "2.0.1",
+  "version": "2.0.4",
   "description": "Add some helpers for your Inertia app with TypeScript.",
   "author": "Ewilan Rivière <ewilan.riviere@gmail.com>",
   "license": "MIT",
-  "homepage": "https://github.com/kiwilan/typescriptable-laravel/lib",
+  "homepage": "https://github.com/kiwilan/typescriptable-laravel/tree/main/lib",
   "repository": {
     "type": "git",
     "url": "git+https://github.com/kiwilan/typescriptable-laravel.git"
diff --git a/lib/tsconfig.json b/lib/tsconfig.json
index f260784..c1230fa 100644
--- a/lib/tsconfig.json
+++ b/lib/tsconfig.json
@@ -1,6 +1,6 @@
 {
   "compilerOptions": {
-    "module": "ESNext",
+    "module": "ES2020",
     "target": "ESNext",
     "lib": ["ESNext", "DOM"],
     "esModuleInterop": true,
diff --git a/lib/tsup.config.ts b/lib/tsup.config.ts
index d1c61f5..f4d29c0 100644
--- a/lib/tsup.config.ts
+++ b/lib/tsup.config.ts
@@ -6,7 +6,7 @@ export default defineConfig({
     index: 'src/index.ts',
   },
   format: ['cjs', 'esm'],
-  external: ['vue', '@inertiajs/vue3'],
+  external: ['vue', '@inertiajs/vue3', 'node:fs/promises', 'node:child_process'],
   outDir: 'dist',
   dts: true,
   minify: true,
diff --git a/src/Typed/Eloquent/Utils/EloquentRelation.php b/src/Typed/Eloquent/Utils/EloquentRelation.php
index b98eb5e..5a11def 100644
--- a/src/Typed/Eloquent/Utils/EloquentRelation.php
+++ b/src/Typed/Eloquent/Utils/EloquentRelation.php
@@ -12,8 +12,8 @@ public function __construct(
         public string $field,
         public bool $isArray = false,
         public bool $isMorph = false,
-        public ?string $type = null,
-        public ?string $typeTs = null,
+        public string $type = 'mixed',
+        public string $typeTs = 'any',
     ) {
     }
 
@@ -69,6 +69,14 @@ private static function make(ReflectionMethod $method): self
             $relation->typeTs = 'any';
         }
 
+        if (! $relation->type) {
+            $relation->type = 'mixed';
+        }
+
+        if (! $relation->typeTs) {
+            $relation->typeTs = 'any';
+        }
+
         return $relation;
     }
 }
diff --git a/tests/README.md b/tests/README.md
new file mode 100644
index 0000000..d1345d3
--- /dev/null
+++ b/tests/README.md
@@ -0,0 +1,10 @@
+# Test environment
+
+## SQL Server
+
+```bash
+docker run -e "ACCEPT_EULA=Y" -e "MSSQL_SA_PASSWORD=12345OHdf%e" \
+  -p 1433:1433 --name sqlserver --hostname sqlserver \
+  -d \
+  mcr.microsoft.com/mssql/server:2022-latest
+```