diff --git a/mwdb/resources/metrics.py b/mwdb/resources/metrics.py
index 35854d91..688890db 100644
--- a/mwdb/resources/metrics.py
+++ b/mwdb/resources/metrics.py
@@ -1,4 +1,5 @@
 from flask import Response
+from prometheus_client import CONTENT_TYPE_LATEST
 
 from mwdb.core.capabilities import Capabilities
 from mwdb.core.metrics import collect
@@ -32,5 +33,5 @@ def get(self):
         metrics = collect()
         return Response(
             metrics,
-            content_type="application/octet-stream",
+            content_type=CONTENT_TYPE_LATEST,
         )
diff --git a/requirements.txt b/requirements.txt
index df96845f..75a85818 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -26,4 +26,4 @@ python-dateutil==2.8.2
 pyzipper==0.3.5
 pycryptodomex==3.19.1
 ssdeep==3.4
-prometheus-client==0.19.0
+prometheus-client==0.21.1