diff --git a/.env b/.env
index 6292e2c..f4f6972 100644
--- a/.env
+++ b/.env
@@ -39,3 +39,6 @@ FORCE_TOKEN=
 
 # Signed URL secret (empty = URL signing disabled)
 SIGNATURE_SECRET=
+
+# App version
+APP_VERSION=
diff --git a/.github/workflows/deploy-lambda.yaml b/.github/workflows/deploy-lambda.yaml
index 84fa17f..7788611 100644
--- a/.github/workflows/deploy-lambda.yaml
+++ b/.github/workflows/deploy-lambda.yaml
@@ -41,6 +41,10 @@ jobs:
                     echo "bref:" >> serverless.yml
                     echo "    team: babeuloula" >> serverless.yml
 
+            -   name: Inject tag version into .env
+                if: github.ref_type == 'tag'
+                run: sed -i "s/APP_VERSION=/APP_VERSION=${{ github.ref_name }}/" .env
+
             -   run: bref deploy --env=prod
                 env:
                     BREF_TOKEN: ${{ secrets.BREF_TOKEN }}
diff --git a/phpmd-ruleset.xml b/phpmd-ruleset.xml
index d046a71..920c05e 100644
--- a/phpmd-ruleset.xml
+++ b/phpmd-ruleset.xml
@@ -32,7 +32,11 @@
     </rule>
     <rule ref="rulesets/codesize.xml/ExcessiveClassComplexity"/>
     <rule ref="rulesets/codesize.xml/ExcessiveClassLength"/>
-    <rule ref="rulesets/codesize.xml/ExcessiveParameterList"/>
+    <rule ref="rulesets/codesize.xml/ExcessiveParameterList">
+        <properties>
+            <property name="minimum" value="15"/>
+        </properties>
+    </rule>
     <rule ref="rulesets/codesize.xml/ExcessivePublicCount"/>
     <rule ref="rulesets/codesize.xml/TooManyFields"/>
     <rule ref="rulesets/codesize.xml/TooManyMethods">
diff --git a/src/Cdn.php b/src/Cdn.php
index 44b45a5..9d2625b 100644
--- a/src/Cdn.php
+++ b/src/Cdn.php
@@ -54,6 +54,7 @@ public function __construct(
         private readonly LoggerInterface $logger,
         private readonly string $forceToken = '',
         private readonly ?UrlSigner $urlSigner = null,
+        private readonly string $appVersion = '',
     ) {
     }
 
@@ -68,7 +69,7 @@ public function handleRequest(Request $request): Response
         try {
             $this->validate($decoder);
         } catch (EmptyUriException) {
-            return new Response('Welcome to your CDN PHP (https://github.com/babeuloula/cdn-php)', Response::HTTP_OK);
+            return new Response($this->getWelcomeMessage(), Response::HTTP_OK);
         } catch (CdnException $e) {
             return new Response($e->getMessage(), $e->getCode());
         }
@@ -276,4 +277,14 @@ private function validate(UriDecoder $decoder): void
             }
         }
     }
+
+    private function getWelcomeMessage(): string
+    {
+        $welcome = 'Welcome to your CDN PHP (https://github.com/babeuloula/cdn-php)';
+        if ('' !== $this->appVersion) {
+            $welcome .= " (v{$this->appVersion})";
+        }
+
+        return $welcome;
+    }
 }
diff --git a/src/Container.php b/src/Container.php
index ec322ae..89e3669 100644
--- a/src/Container.php
+++ b/src/Container.php
@@ -74,6 +74,7 @@ public function boot(): void
                 $this->get(LoggerInterface::class),
                 $this->get(self::KEY_FORCE_TOKEN),
                 $urlSigner,
+                $this->getEnv('APP_VERSION') ?? '',
             ),
         );
     }
diff --git a/tests/Cdn/CdnTest.php b/tests/Cdn/CdnTest.php
index 613dfcb..5e89e4e 100644
--- a/tests/Cdn/CdnTest.php
+++ b/tests/Cdn/CdnTest.php
@@ -71,6 +71,29 @@ public function canHandleRequestWithEmptyUri(): void
         static::assertSame(Response::HTTP_OK, $response->getStatusCode());
     }
 
+    #[Test]
+    public function canHandleRequestWithEmptyUriAndVersion(): void
+    {
+        $cdn = new Cdn(
+            $this->getContainer('allowed_domains'),
+            $this->getContainer('domains_aliases'),
+            $this->getContainer(Storage::class),
+            $this->getContainer(ImageProcessor::class),
+            $this->getContainer(StaticAssetProcessor::class),
+            $this->getContainer(Cache::class),
+            $this->getContainer(LoggerInterface::class),
+            '',
+            null,
+            '1.2.3'
+        );
+        $request = Request::create('');
+
+        $response = $cdn->handleRequest($request);
+
+        static::assertSame(Response::HTTP_OK, $response->getStatusCode());
+        static::assertStringContainsString('(v1.2.3)', $response->getContent());
+    }
+
     #[Test]
     public function cantHandleRequestInvalidUri(): void
     {