diff --git a/tiller/values.yaml b/tiller/values.yaml
index b1ba1447..2b35d4ad 100644
--- a/tiller/values.yaml
+++ b/tiller/values.yaml
@@ -44,6 +44,7 @@ pod:
       container:
         tiller:
           allowPrivilegeEscalation: false
+          readOnlyRootFilesystem: true
   resources:
     enabled: false
     jobs: