diff --git a/manifests/base/dex/argocd-dex-server-service.yaml b/manifests/base/dex/argocd-dex-server-service.yaml
index 7aeabca1e674e..cffbf006ae624 100644
--- a/manifests/base/dex/argocd-dex-server-service.yaml
+++ b/manifests/base/dex/argocd-dex-server-service.yaml
@@ -9,6 +9,7 @@ metadata:
 spec:
   ports:
   - name: http
+    appProtocol: TCP
     protocol: TCP
     port: 5556
     targetPort: 5556
diff --git a/manifests/ha/install.yaml b/manifests/ha/install.yaml
index 26801daea28a2..7716ec7e68bc9 100644
--- a/manifests/ha/install.yaml
+++ b/manifests/ha/install.yaml
@@ -19769,7 +19769,8 @@ metadata:
   name: argocd-dex-server
 spec:
   ports:
-  - name: http
+  - appProtocol: TCP
+    name: http
     port: 5556
     protocol: TCP
     targetPort: 5556
diff --git a/manifests/ha/namespace-install.yaml b/manifests/ha/namespace-install.yaml
index 9c6be39785fec..03e2dd32f2395 100644
--- a/manifests/ha/namespace-install.yaml
+++ b/manifests/ha/namespace-install.yaml
@@ -1275,7 +1275,8 @@ metadata:
   name: argocd-dex-server
 spec:
   ports:
-  - name: http
+  - appProtocol: TCP
+    name: http
     port: 5556
     protocol: TCP
     targetPort: 5556
diff --git a/manifests/install.yaml b/manifests/install.yaml
index 6a5afae6a87ae..370b3f22b35c8 100644
--- a/manifests/install.yaml
+++ b/manifests/install.yaml
@@ -18973,7 +18973,8 @@ metadata:
   name: argocd-dex-server
 spec:
   ports:
-  - name: http
+  - appProtocol: TCP
+    name: http
     port: 5556
     protocol: TCP
     targetPort: 5556
diff --git a/manifests/namespace-install.yaml b/manifests/namespace-install.yaml
index 415ea143c5b64..ac244c7ccfe1d 100644
--- a/manifests/namespace-install.yaml
+++ b/manifests/namespace-install.yaml
@@ -479,7 +479,8 @@ metadata:
   name: argocd-dex-server
 spec:
   ports:
-  - name: http
+  - appProtocol: TCP
+    name: http
     port: 5556
     protocol: TCP
     targetPort: 5556