diff --git a/clusters/k8s-avroid-office.prod.local/namespaces/cloud-prod/monitoring/postgres-exporter/values-override.yaml b/clusters/k8s-avroid-office.prod.local/namespaces/cloud-prod/monitoring/postgres-exporter/values-override.yaml
index bd4de41..4f47fc7 100644
--- a/clusters/k8s-avroid-office.prod.local/namespaces/cloud-prod/monitoring/postgres-exporter/values-override.yaml
+++ b/clusters/k8s-avroid-office.prod.local/namespaces/cloud-prod/monitoring/postgres-exporter/values-override.yaml
@@ -41,8 +41,8 @@ config:
       pg_monitoring:
         type: userpass
         userpass:
-          username: $DATA_SOURCE_USER
-          password: $DATA_SOURCE_PASS
+          username: "${DATA_SOURCE_USER}"
+          password: "${DATA_SOURCE_PASS}"
         options:
           sslmode: disable