diff --git a/helm/api7ee-demo-k8s/templates/configmap-adc.yaml b/helm/api7ee-demo-k8s/templates/configmap-adc.yaml
index c7588ef..29ec7ba 100644
--- a/helm/api7ee-demo-k8s/templates/configmap-adc.yaml
+++ b/helm/api7ee-demo-k8s/templates/configmap-adc.yaml
@@ -38,10 +38,10 @@ data:
               {{- end }}
               {{- if .Values.api7.plugins.cors.enabled }}
               cors:
-                allow_origins: {{ .Values.api7.plugins.cors.allowOrigins | toJson }}
-                allow_methods: {{ .Values.api7.plugins.cors.allowMethods | toJson }}
-                allow_headers: {{ .Values.api7.plugins.cors.allowHeaders | toJson }}
-                expose_headers: {{ .Values.api7.plugins.cors.exposeHeaders | toJson }}
+                allow_origins: {{ .Values.api7.plugins.cors.allowOrigins | join "," | quote }}
+                allow_methods: {{ .Values.api7.plugins.cors.allowMethods | join "," | quote }}
+                allow_headers: {{ .Values.api7.plugins.cors.allowHeaders | join "," | quote }}
+                expose_headers: {{ .Values.api7.plugins.cors.exposeHeaders | join "," | quote }}
                 max_age: {{ .Values.api7.plugins.cors.maxAge }}
                 allow_credential: {{ .Values.api7.plugins.cors.allowCredentials }}
               {{- end }}
@@ -72,10 +72,10 @@ data:
               {{- end }}
               {{- if .Values.api7.plugins.cors.enabled }}
               cors:
-                allow_origins: {{ .Values.api7.plugins.cors.allowOrigins | toJson }}
-                allow_methods: {{ .Values.api7.plugins.cors.allowMethods | toJson }}
-                allow_headers: {{ .Values.api7.plugins.cors.allowHeaders | toJson }}
-                expose_headers: {{ .Values.api7.plugins.cors.exposeHeaders | toJson }}
+                allow_origins: {{ .Values.api7.plugins.cors.allowOrigins | join "," | quote }}
+                allow_methods: {{ .Values.api7.plugins.cors.allowMethods | join "," | quote }}
+                allow_headers: {{ .Values.api7.plugins.cors.allowHeaders | join "," | quote }}
+                expose_headers: {{ .Values.api7.plugins.cors.exposeHeaders | join "," | quote }}
                 max_age: {{ .Values.api7.plugins.cors.maxAge }}
                 allow_credential: {{ .Values.api7.plugins.cors.allowCredentials }}
               {{- end }}
@@ -100,10 +100,10 @@ data:
               {{- end }}
               {{- if .Values.api7.plugins.cors.enabled }}
               cors:
-                allow_origins: {{ .Values.api7.plugins.cors.allowOrigins | toJson }}
-                allow_methods: {{ .Values.api7.plugins.cors.allowMethods | toJson }}
-                allow_headers: {{ .Values.api7.plugins.cors.allowHeaders | toJson }}
-                expose_headers: {{ .Values.api7.plugins.cors.exposeHeaders | toJson }}
+                allow_origins: {{ .Values.api7.plugins.cors.allowOrigins | join "," | quote }}
+                allow_methods: {{ .Values.api7.plugins.cors.allowMethods | join "," | quote }}
+                allow_headers: {{ .Values.api7.plugins.cors.allowHeaders | join "," | quote }}
+                expose_headers: {{ .Values.api7.plugins.cors.exposeHeaders | join "," | quote }}
                 max_age: {{ .Values.api7.plugins.cors.maxAge }}
                 allow_credential: {{ .Values.api7.plugins.cors.allowCredentials }}
               {{- end }}