diff --git a/memcached/templates/deployment.yaml b/memcached/templates/deployment.yaml
index 06062495..d691c84b 100644
--- a/memcached/templates/deployment.yaml
+++ b/memcached/templates/deployment.yaml
@@ -43,6 +43,8 @@ spec:
       labels:
 {{ tuple $envAll "memcached" "server" | include "helm-toolkit.snippets.kubernetes_metadata_labels" | indent 8 }}
     spec:
+      securityContext:
+        readOnlyRootFilesystem: true
       shareProcessNamespace: true
       serviceAccountName: {{ $rcControllerName | quote }}
       affinity: