diff --git a/lib/datasource/maven/index.js b/lib/datasource/maven/index.js
index ca7246f3c1951f3c6ff2a6034a2fb11f4c6351a8..80ff1e92f76aff54edaa01fb9767fa13c34e18d7 100644
--- a/lib/datasource/maven/index.js
+++ b/lib/datasource/maven/index.js
@@ -138,7 +138,7 @@ async function downloadHttpProtocol(pkgUrl) {
     if (isNotFoundError(err)) {
       logger.debug(`Url not found ${pkgUrl}`);
     } else if (isPermissionsIssue(err)) {
-      logger.info(
+      logger.warn(
         { pkgUrl },
         'Dependency lookup unauthorized. Please add authentication with a hostRule'
       );
diff --git a/website/docs/configuration-options.md b/website/docs/configuration-options.md
index 601416e335cb4c47ac5932284ef10c6246a4490c..ea67b18685cf3eb9f1a8707ce788587f2c6e2d96 100644
--- a/website/docs/configuration-options.md
+++ b/website/docs/configuration-options.md
@@ -280,11 +280,13 @@ Example for configuring `docker` auth:
 
 ```json
 {
-  "hostRules": {
-    "platform": "docker",
-    "username": "<some-username>",
-    "password": "<some-password>"
-  }
+  "hostRules": [
+    {
+      "platform": "docker",
+      "username": "<some-username>",
+      "password": "<some-password>"
+    }
+  ]
 }
 ```