diff --git a/charts/quickwit/Chart.yaml b/charts/quickwit/Chart.yaml
index 67439a9..3f2d328 100644
--- a/charts/quickwit/Chart.yaml
+++ b/charts/quickwit/Chart.yaml
@@ -2,7 +2,7 @@ apiVersion: v2
 name: quickwit
 description: Sub-second search & analytics engine on cloud storage.
 type: application
-version: 0.5.5
+version: 0.5.6
 appVersion: "v0.7.1"
 keywords:
   - quickwit
diff --git a/charts/quickwit/templates/service.yaml b/charts/quickwit/templates/service.yaml
index 42d4524..cc84d42 100644
--- a/charts/quickwit/templates/service.yaml
+++ b/charts/quickwit/templates/service.yaml
@@ -28,9 +28,18 @@ spec:
   clusterIP: None
   publishNotReadyAddresses: true
   ports:
-    - port: 7282
+    # Needed by istio with mTLS mode set to STRICT.
+    # The port names must starts with "tcp-" or "udp-" to work...
+    # See https://istio.io/latest/docs/ops/common-problems/network-issues/#503-error-while-accessing-headless-services
+    - name: udp
+      port: 7282
       protocol: UDP
-      name: discovery
+    - name: tcp-http
+      port: 7280
+      protocol: TCP
+    - name: tcp-grpc
+      port: 7281
+      protocol: TCP
   selector:
     {{- include "quickwit.selectorLabels" . | nindent 4 }}
 ---