diff --git a/apps/backend/src/tracing.js b/apps/backend/src/tracing.js
index c88059e..4c01bdd 100644
--- a/apps/backend/src/tracing.js
+++ b/apps/backend/src/tracing.js
@@ -14,20 +14,21 @@ import { getNodeAutoInstrumentations } from '@opentelemetry/auto-instrumentation
 import { OTLPTraceExporter } from '@opentelemetry/exporter-trace-otlp-grpc';
 import { OTLPMetricExporter } from '@opentelemetry/exporter-metrics-otlp-grpc';
 import * as resources from '@opentelemetry/resources';
-import { ATTR_SERVICE_NAME, ATTR_SERVICE_NAMESPACE } from '@opentelemetry/semantic-conventions';
 import { PinoInstrumentation } from '@opentelemetry/instrumentation-pino';
 
 const serviceName = process.env.OTEL_SERVICE_NAME || 'farmaclic-backend';
 const otlpEndpoint = process.env.OTEL_EXPORTER_OTLP_ENDPOINT || 'http://localhost:4317';
 
+// Use plain string attribute keys (not the semantic-conventions named exports)
+// so we don't depend on a specific @opentelemetry/semantic-conventions version.
 const resource = typeof resources.resourceFromAttributes === 'function'
   ? resources.resourceFromAttributes({
-      [ATTR_SERVICE_NAME]: serviceName,
-      [ATTR_SERVICE_NAMESPACE]: 'farmaclic',
+      'service.name': serviceName,
+      'service.namespace': 'farmaclic',
     })
   : new resources.Resource({
-      [ATTR_SERVICE_NAME]: serviceName,
-      [ATTR_SERVICE_NAMESPACE]: 'farmaclic',
+      'service.name': serviceName,
+      'service.namespace': 'farmaclic',
     });
 
 // Metrics → OTLP → Alloy → Prometheus remote_write. The PeriodicExportingMetricReader