diff --git a/manifests/0prometheus-operator-deployment.yaml b/manifests/0prometheus-operator-deployment.yaml
index faca5a844b46021c8915e69412353ebc3c666f8d..5a193a35d922399d6b80961502422c7155afb0b0 100644
--- a/manifests/0prometheus-operator-deployment.yaml
+++ b/manifests/0prometheus-operator-deployment.yaml
@@ -18,6 +18,7 @@ spec:
       containers:
       - args:
         - --kubelet-service=kube-system/kubelet
+        - -logtostderr=true
         - --config-reloader-image=quay.io/coreos/configmap-reload:v0.0.1
         - --prometheus-config-reloader=quay.io/coreos/prometheus-config-reloader:v0.22.0
         image: quay.io/coreos/prometheus-operator:v0.22.0
@@ -32,6 +33,9 @@ spec:
           requests:
             cpu: 100m
             memory: 50Mi
+        securityContext:
+          allowPrivilegeEscalation: false
+          readOnlyRootFilesystem: true
       nodeSelector:
         beta.kubernetes.io/os: linux
       securityContext: