diff --git a/README.md b/README.md
index 2c4a2cd..1c86f5e 100644
--- a/README.md
+++ b/README.md
@@ -276,13 +276,13 @@ LibreTranslate has Prometheus [exporter](https://prometheus.io/docs/instrumentin
 http://localhost:5000/metrics
 
 ```
-# HELP request_inprogress Multiprocess metric
-# TYPE request_inprogress gauge
-request_inprogress{api_key="",endpoint="/translate",request_ip="127.0.0.1"} 0.0
-# HELP request_seconds Multiprocess metric
-# TYPE request_seconds summary
-request_seconds_count{api_key="",endpoint="/translate",request_ip="127.0.0.1",status="200"} 0.0
-request_seconds_sum{api_key="",endpoint="/translate",request_ip="127.0.0.1",status="200"} 0.0
+# HELP libretranslate_http_requests_in_flight Multiprocess metric
+# TYPE libretranslate_http_requests_in_flight gauge
+libretranslate_http_requests_in_flight{api_key="",endpoint="/translate",request_ip="127.0.0.1"} 0.0
+# HELP libretranslate_http_request_duration_seconds Multiprocess metric
+# TYPE libretranslate_http_request_duration_seconds summary
+libretranslate_http_request_duration_seconds_count{api_key="",endpoint="/translate",request_ip="127.0.0.1",status="200"} 0.0
+libretranslate_http_request_duration_seconds_sum{api_key="",endpoint="/translate",request_ip="127.0.0.1",status="200"} 0.0
 ```
 
 You can then configure `prometheus.yml` to read the metrics:
diff --git a/VERSION b/VERSION
index 80e78df..95b25ae 100644
--- a/VERSION
+++ b/VERSION
@@ -1 +1 @@
-1.3.5
+1.3.6
diff --git a/app/app.py b/app/app.py
index 09920f1..b0572fd 100644
--- a/app/app.py
+++ b/app/app.py
@@ -192,10 +192,10 @@ def create_app(args):
         multiprocess.MultiProcessCollector(registry)
         return Response(generate_latest(registry), mimetype=CONTENT_TYPE_LATEST)
 
-      measure_request = Summary('request_seconds', 'Time spent on request', ['endpoint', 'status', 'request_ip', 'api_key'])
+      measure_request = Summary('libretranslate_http_request_duration_seconds', 'Time spent on request', ['endpoint', 'status', 'request_ip', 'api_key'])
       measure_request.labels('/translate', 200, '127.0.0.1', '')
 
-      gauge_request = Gauge('request_inprogress', 'Active requests', ['endpoint', 'request_ip', 'api_key'], multiprocess_mode='livesum')
+      gauge_request = Gauge('libretranslate_http_requests_in_flight', 'Active requests', ['endpoint', 'request_ip', 'api_key'], multiprocess_mode='livesum')
       gauge_request.labels('/translate', '127.0.0.1', '')
 
     def access_check(f):