diff --git a/helm/values-dev.yaml b/helm/values-dev.yaml
index 3cfaf60e..9d79b4e7 100644
--- a/helm/values-dev.yaml
+++ b/helm/values-dev.yaml
@@ -29,7 +29,7 @@ microservice-chart:
     ADAPTER_API_CONFIG_CACHE_CRON: "0 */1 * * * ?"
     BLOB_RE_CONTAINER_NAME: "re-payload"
     MONGODB_EXPLAIN_QUERIES: "true"
-    MONGODB_PAYMENTS_BULK_SIZE: 100
+    MONGODB_PAYMENTS_BULK_SIZE: "100"
   envFieldRef:
     APP_NAME: "metadata.labels['app.kubernetes.io/instance']"
     APP_VERSION: "metadata.labels['app.kubernetes.io/version']"
diff --git a/helm/values-uat.yaml b/helm/values-uat.yaml
index 02f62589..d5ff842b 100644
--- a/helm/values-uat.yaml
+++ b/helm/values-uat.yaml
@@ -29,7 +29,7 @@ microservice-chart:
     ADAPTER_API_CONFIG_CACHE_CRON: "0 */1 * * * ?"
     BLOB_RE_CONTAINER_NAME: "re-payload"
     MONGODB_EXPLAIN_QUERIES: "true"
-    MONGODB_PAYMENTS_BULK_SIZE: 100
+    MONGODB_PAYMENTS_BULK_SIZE: "100"
   envFieldRef:
     APP_NAME: "metadata.labels['app.kubernetes.io/instance']"
     APP_VERSION: "metadata.labels['app.kubernetes.io/version']"