diff --git a/bundle/manifests/opentelemetry-operator-controller-manager-metrics-service_v1_service.yaml b/bundle/manifests/opentelemetry-operator-controller-manager-metrics-service_v1_service.yaml
index 6dba7e0d01..9e8b2cbd9c 100644
--- a/bundle/manifests/opentelemetry-operator-controller-manager-metrics-service_v1_service.yaml
+++ b/bundle/manifests/opentelemetry-operator-controller-manager-metrics-service_v1_service.yaml
@@ -9,6 +9,7 @@ spec:
   ports:
   - name: https
     port: 8443
+    protocol: TCP
     targetPort: https
   selector:
     control-plane: controller-manager
diff --git a/bundle/manifests/opentelemetry-operator-webhook-service_v1_service.yaml b/bundle/manifests/opentelemetry-operator-webhook-service_v1_service.yaml
index 7017d35ae5..653d80ef11 100644
--- a/bundle/manifests/opentelemetry-operator-webhook-service_v1_service.yaml
+++ b/bundle/manifests/opentelemetry-operator-webhook-service_v1_service.yaml
@@ -6,6 +6,7 @@ metadata:
 spec:
   ports:
   - port: 443
+    protocol: TCP
     targetPort: 9443
   selector:
     control-plane: controller-manager
diff --git a/bundle/manifests/opentelemetry-operator.clusterserviceversion.yaml b/bundle/manifests/opentelemetry-operator.clusterserviceversion.yaml
index aeb344e88c..7559d3e563 100644
--- a/bundle/manifests/opentelemetry-operator.clusterserviceversion.yaml
+++ b/bundle/manifests/opentelemetry-operator.clusterserviceversion.yaml
@@ -233,6 +233,7 @@ spec:
                 ports:
                 - containerPort: 8443
                   name: https
+                  protocol: TCP
                 resources: {}
               serviceAccountName: opentelemetry-operator-controller-manager
               terminationGracePeriodSeconds: 10
diff --git a/config/default/manager_auth_proxy_patch.yaml b/config/default/manager_auth_proxy_patch.yaml
index a2dc7c4132..6f8c02fdd9 100644
--- a/config/default/manager_auth_proxy_patch.yaml
+++ b/config/default/manager_auth_proxy_patch.yaml
@@ -19,6 +19,7 @@ spec:
         ports:
         - containerPort: 8443
           name: https
+          protocol: TCP
       - name: manager
         args:
         - "--metrics-addr=127.0.0.1:8080"
diff --git a/config/rbac/auth_proxy_service.yaml b/config/rbac/auth_proxy_service.yaml
index 6cf656be14..65e99c69f2 100644
--- a/config/rbac/auth_proxy_service.yaml
+++ b/config/rbac/auth_proxy_service.yaml
@@ -10,5 +10,6 @@ spec:
   - name: https
     port: 8443
     targetPort: https
+    protocol: TCP
   selector:
     control-plane: controller-manager
diff --git a/config/webhook/service.yaml b/config/webhook/service.yaml
index 31e0f82959..a958908569 100644
--- a/config/webhook/service.yaml
+++ b/config/webhook/service.yaml
@@ -8,5 +8,6 @@ spec:
   ports:
     - port: 443
       targetPort: 9443
+      protocol: TCP
   selector:
     control-plane: controller-manager