diff --git a/backend/app.py b/backend/app.py
index 66817bf..bc8727a 100644
--- a/backend/app.py
+++ b/backend/app.py
@@ -266,7 +266,7 @@ def add_header(response):
     and also to cache the rendered page for 10 minutes.
     """
     if not 'Cache-Control' in response.headers:
-        response.headers['Cache-Control'] = 'private, max-age=600'
+        response.headers['Cache-Control'] = 'private, max-age=600, no-cache, must-revalidate'
     return response
 
 @app.context_processor