diff --git a/docker-compose.yml b/docker-compose.yml
index 5cc6456..0746f92 100644
--- a/docker-compose.yml
+++ b/docker-compose.yml
@@ -30,7 +30,7 @@ services:
       APP_URL: "http://localhost:3000"
       NODE_ENV: local # pretty logs
 
-      OTEL_EXPORTER_OTLP_ENDPOINT: http://tempo:55681/v1/traces
+      OTEL_EXPORTER_OTLP_ENDPOINT: http://tempo:4318/v1/traces
     env_file: .env
     volumes:
       - ./src:/app/src
diff --git a/observability/docker-compose.yml b/observability/docker-compose.yml
index 4e7c827..44ddfa3 100644
--- a/observability/docker-compose.yml
+++ b/observability/docker-compose.yml
@@ -53,8 +53,8 @@ services:
       - ./tempo/tempo.yaml:/etc/tempo.yaml
       - tempo_data:/tmp/tempo
     ports:
-      - "55680" # OpenTelemetry
       - "3101" # tempo
+      - "4318" # OpenTelemetry HTTP
     networks:
       - observability
       - api