diff --git a/appengine/app.yaml b/appengine/app.yaml
index 216d191..1753168 100644
--- a/appengine/app.yaml
+++ b/appengine/app.yaml
@@ -1,7 +1,11 @@
-runtime: python27
+runtime: python
 api_version: 1
+env: flex
 threadsafe: true
 
+runtime_config:
+  python_version: 2
+
 handlers:
 - url: /assets
   static_dir: assets
diff --git a/readme.md b/readme.md
index a8d1924..6a92f95 100644
--- a/readme.md
+++ b/readme.md
@@ -53,7 +53,7 @@ GitHub.
 1. Go to https://console.cloud.google.com/projectselector/iam-admin/serviceaccounts and create a Service Account in your project.
 2. Download the json file.
 3. Upload replacing the file in the `credentials` directory.
-
+4. Make sure the Service Account is allowed to access Google Search Console resources (https://search.google.com/u/1/search-console/users?resource_id={your_website}), use 'Add User' button and email address provided by Google under Service Accounts section
 
 ### 4. Deploy to App Engine