diff --git a/.github/dependabot.yml b/.github/dependabot.yml
new file mode 100644
index 0000000..f7b8104
--- /dev/null
+++ b/.github/dependabot.yml
@@ -0,0 +1,13 @@
+version: 2
+updates:
+  - package-ecosystem: github-actions
+    directory: /
+    schedule:
+      interval: weekly
+    open-pull-requests-limit: 5
+  - package-ecosystem: composer
+    directory: /
+    schedule:
+      interval: monthly
+    open-pull-requests-limit: 5
+    versioning-strategy: widen
diff --git a/UPGRADE-2.0.md b/UPGRADE-2.0.md
new file mode 100644
index 0000000..603f8e8
--- /dev/null
+++ b/UPGRADE-2.0.md
@@ -0,0 +1,5 @@
+# Upgrade from 1.x to 2.0
+
+- Minimum PHP is **8.2** (`^8.2`).
+- Requires `portphp/portphp` **^2.0**.
+- `doctrine/common` is now **^3.0** only.
diff --git a/composer.json b/composer.json
index c776fe9..3a97b18 100644
--- a/composer.json
+++ b/composer.json
@@ -24,16 +24,17 @@
     },
     "require": {
         "php": "^8.2",
-        "portphp/portphp": "^1.0.0",
-        "doctrine/common": "^2.13 || ^3.0"
+        "portphp/portphp": "^2.0",
+        "doctrine/common": "^3.0"
     },
     "require-dev": {
-        "phpunit/phpunit": "^9.5",
+        "phpunit/phpunit": "^9.6",
         "ext-sqlite3": "*",
         "doctrine/cache": "^1.11",
-        "doctrine/orm": "^2.8",
+        "doctrine/orm": "^2.14",
         "doctrine/mongodb-odm": "^2.0",
-        "doctrine/annotations": "^1.13"
+        "doctrine/annotations": "^1.13",
+        "symfony/cache": "^5.4 || ^6.0 || ^7.0 || ^8.0"
     },
     "autoload": {
         "psr-4": {
diff --git a/src/DoctrineWriter.php b/src/DoctrineWriter.php
index aa6cbb5..3476718 100644
--- a/src/DoctrineWriter.php
+++ b/src/DoctrineWriter.php
@@ -190,7 +190,7 @@ public function writeItem(array $item): void
     /**
      * Flush and clear the object manager
      */
-    public function flush()
+    public function flush(): void
     {
         $this->objectManager->flush();
         $this->objectManager->clear();