diff --git a/app.json b/app.json
index bf182801..a68bfdb9 100644
--- a/app.json
+++ b/app.json
@@ -77,7 +77,7 @@
     {
       "plan": "heroku-postgresql",
       "options": {
-        "version": "10"
+        "version": "11"
       }
     }
   ]