diff --git a/app/composer.json b/app/composer.json
index 1e9e414..a4941ac 100644
--- a/app/composer.json
+++ b/app/composer.json
@@ -5,8 +5,8 @@
     "temporal/sdk": "^2.8.0",
     "spiral/tokenizer": "^3.7",
     "temporal/open-telemetry-interceptors": "dev-master",
-    "open-telemetry/exporter-otlp": "^1",
-    "open-telemetry/transport-grpc": "^1",
+    "open-telemetry/exporter-otlp": "^1.0",
+    "open-telemetry/transport-grpc": "^1.0",
     "symfony/console": "^5.4 || ^6.0 || ^7.0"
   },
   "require-dev": {
diff --git a/app/util-src/TracerFactory.php b/app/util-src/TracerFactory.php
index 0521e5f..69ec5a8 100644
--- a/app/util-src/TracerFactory.php
+++ b/app/util-src/TracerFactory.php
@@ -11,7 +11,7 @@
 
 namespace Temporal\SampleUtils;
 
-use OpenTelemetry\API\Common\Signal\Signals;
+use OpenTelemetry\API\Signals;
 use OpenTelemetry\API\Trace\Propagation\TraceContextPropagator;
 use OpenTelemetry\Contrib\Grpc\GrpcTransportFactory;
 use OpenTelemetry\Contrib\Otlp\OtlpUtil;
@@ -36,12 +36,15 @@ public static function create(string $serviceName): Tracer
         $transport = (new GrpcTransportFactory())->create($endpoint . OtlpUtil::method(Signals::TRACE));
         $spanProcessor = (new SpanProcessorFactory())->create(new SpanExporter($transport));
 
-        $resource = ResourceInfoFactory::merge(
-            ResourceInfo::create(Attributes::create([
-                ResourceAttributes::SERVICE_NAME => $serviceName,
-            ])),
-            ResourceInfoFactory::defaultResource(),
-        );
+        $defaultResource = ResourceInfoFactory::defaultResource();
+        $defaultAttributes = $defaultResource->getAttributes()->toArray();
+
+        $customAttributes = [
+            ResourceAttributes::SERVICE_NAME => $serviceName,
+        ];
+
+        $mergedAttributes = array_merge($defaultAttributes, $customAttributes);
+        $resource = ResourceInfo::create(Attributes::create($mergedAttributes));
 
         return new Tracer(
             (new TracerProvider(spanProcessors: $spanProcessor, resource: $resource))->getTracer('Temporal Samples'),