diff --git a/elasticsearch_exporter.jsonnet b/elasticsearch_exporter.jsonnet
index d647ead..5d28cc7 100644
--- a/elasticsearch_exporter.jsonnet
+++ b/elasticsearch_exporter.jsonnet
@@ -29,7 +29,7 @@ local k = import 'ksonnet/ksonnet.beta.3/k.libsonnet';
         container.mixin.securityContext.capabilities.withDrop(['SETPCAP' , 'MKNOD' , 'AUDIT_WRITE' , 'CHOWN' , 'NET_RAW' , 'DAC_OVERRIDE' , 'FOWNER' , 'FSETID' , 'KILL' , 'SETGID' , 'SETUID' , 'NET_BIND_SERVICE' , 'SYS_CHROOT' , 'SETFCAP']) +
         container.mixin.securityContext.withRunAsNonRoot(true) +
         container.mixin.securityContext.withRunAsUser(1000) +
-        container.mixin.securityContext.withReadOnlyRootFilesystem('true') +
+        container.mixin.securityContext.withReadOnlyRootFilesystem(true) +
         container.mixin.resources.withRequests({memory: "64Mi", cpu: "25m"}) +
         container.mixin.resources.withLimits({memory: "128Mi", cpu: "100m"}) +
         container.mixin.livenessProbe.httpGet.withPath('/health') +
diff --git a/manifests/elasticexporter-deployment.yaml b/manifests/elasticexporter-deployment.yaml
index 54c60e1..58eb903 100644
--- a/manifests/elasticexporter-deployment.yaml
+++ b/manifests/elasticexporter-deployment.yaml
@@ -67,7 +67,7 @@ spec:
             - NET_BIND_SERVICE
             - SYS_CHROOT
             - SETFCAP
-          readOnlyRootFilesystem: "true"
+          readOnlyRootFilesystem: true
           runAsNonRoot: true
           runAsUser: 1000
       restartPolicy: Always