diff --git a/.github/labeler.yml b/.github/labeler.yml
new file mode 100644
index 000000000..d0a7bb123
--- /dev/null
+++ b/.github/labeler.yml
@@ -0,0 +1,7 @@
+# https://github.com/actions/labeler
+docs:
+  - changed-files:
+    - any-glob-to-any-file: 'docs/**'
+github:
+  - changed-files:
+    - any-glob-to-any-file: '.github/**'
diff --git a/.github/workflows/labeler.yml b/.github/workflows/labeler.yml
new file mode 100644
index 000000000..52474c6a6
--- /dev/null
+++ b/.github/workflows/labeler.yml
@@ -0,0 +1,12 @@
+name: "Pull Request Labeler"
+on:
+  - pull_request_target
+
+jobs:
+  labeler:
+    permissions:
+      contents: read
+      pull-requests: write
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/labeler@v5
diff --git a/CHANGELOG.md b/CHANGELOG.md
index 2400d82cc..ad748ef07 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -12,6 +12,7 @@ All notable changes to this project will be documented in this file.
 
 * Fix memory leak when filling nested fields using dot notation by @GromNaN in [#2962](https://github.com/mongodb/laravel-mongodb/pull/2962)
 * Fix PHP error when accessing the connection after disconnect by @SanderMuller in [#2967](https://github.com/mongodb/laravel-mongodb/pull/2967)
+* Improve error message for invalid configuration by @GromNaN in [#2975](https://github.com/mongodb/laravel-mongodb/pull/2975)
 
 ## [4.3.0] - 2024-04-26
 
diff --git a/src/Connection.php b/src/Connection.php
index aea6238ea..2ce5324ee 100644
--- a/src/Connection.php
+++ b/src/Connection.php
@@ -215,6 +215,8 @@ public function disconnect()
 
     /**
      * Determine if the given configuration array has a dsn string.
+     *
+     * @deprecated
      */
     protected function hasDsnString(array $config): bool
     {
@@ -263,9 +265,15 @@ protected function getHostDsn(array $config): string
      */
     protected function getDsn(array $config): string
     {
-        return $this->hasDsnString($config)
-            ? $this->getDsnString($config)
-            : $this->getHostDsn($config);
+        if (! empty($config['dsn'])) {
+            return $this->getDsnString($config);
+        }
+
+        if (! empty($config['host'])) {
+            return $this->getHostDsn($config);
+        }
+
+        throw new InvalidArgumentException('MongoDB connection configuration requires "dsn" or "host" key.');
     }
 
     /** @inheritdoc */
diff --git a/tests/ConnectionTest.php b/tests/ConnectionTest.php
index 383e47fe5..83097973b 100644
--- a/tests/ConnectionTest.php
+++ b/tests/ConnectionTest.php
@@ -206,6 +206,14 @@ public function testConnectionWithoutConfiguredDatabase(): void
         new Connection(['dsn' => 'mongodb://some-host']);
     }
 
+    public function testConnectionWithoutConfiguredDsnOrHost(): void
+    {
+        $this->expectException(InvalidArgumentException::class);
+        $this->expectExceptionMessage('MongoDB connection configuration requires "dsn" or "host" key.');
+
+        new Connection(['database' => 'hello']);
+    }
+
     public function testCollection()
     {
         $collection = DB::connection('mongodb')->getCollection('unittest');