diff --git a/app/Http/Controllers/MarketController.php b/app/Http/Controllers/MarketController.php
index 9fa9f3db..60935071 100644
--- a/app/Http/Controllers/MarketController.php
+++ b/app/Http/Controllers/MarketController.php
@@ -103,6 +103,7 @@ class MarketController extends Controller
 
     protected function getAllAvailablePlugins()
     {
+        $registryVersion = 1;
         if (app()->environment('testing') || ! $this->registryCache) {
             try {
                 $pluginsJson = $this->guzzle->request(
@@ -115,6 +116,10 @@ class MarketController extends Controller
             }
 
             $this->registryCache = json_decode($pluginsJson, true);
+            $received = Arr::get($this->registryCache, 'version');
+            if (is_int($received) && $received != $registryVersion) {
+                throw new Exception("Only version $registryVersion of market registry is accepted.");
+            }
         }
 
         return Arr::get($this->registryCache, 'packages', []);
diff --git a/tests/MarketControllerTest.php b/tests/MarketControllerTest.php
index a2950c62..6dbef4be 100644
--- a/tests/MarketControllerTest.php
+++ b/tests/MarketControllerTest.php
@@ -92,6 +92,7 @@ class MarketControllerTest extends TestCase
         $this->setupGuzzleClientMock([
             new RequestException('Connection Error', new Request('POST', 'whatever')),
             new Response(200, [], $registry),
+            new Response(200, [], json_encode(array_merge(json_decode($registry, true), ['version' => 0]))),
         ]);
 
         // Expected an exception, but unable to be asserted.
@@ -112,6 +113,10 @@ class MarketControllerTest extends TestCase
             ]);
 
         File::deleteDirectory(config('plugins.directory').DIRECTORY_SEPARATOR.$package['name']);
+
+        $this
+            ->getJson('/admin/plugins/market-data')
+            ->assertJson(['message' => 'Only version 1 of market registry is accepted.']);
     }
 
     protected function tearDown(): void