diff --git a/infra/helm/stonks-oracle/values.yaml b/infra/helm/stonks-oracle/values.yaml
index 97aab70..cbd2d0f 100644
--- a/infra/helm/stonks-oracle/values.yaml
+++ b/infra/helm/stonks-oracle/values.yaml
@@ -194,7 +194,7 @@ config:
   TRINO_ICEBERG_CATALOG: "iceberg"
   BROKER_MODE: "paper"
   BROKER_PROVIDER: ""
-  MARKET_DATA_BASE_URL: ""
+  MARKET_DATA_BASE_URL: "https://api.polygon.io"
   MARKET_DATA_PROVIDER: "polygon"
   RETENTION_RAW_MARKET_DAYS: "90"
   RETENTION_RAW_NEWS_DAYS: "180"