diff --git a/heroku.yml b/heroku.yml
index 8f82f5e..f6df591 100644
--- a/heroku.yml
+++ b/heroku.yml
@@ -3,13 +3,13 @@ setup:
     - plan: heroku-postgresql
       as: DATABASE
   config:
-    POSTGRES_USER=gitea
-    POSTGRES_PASSWORD=gitea
-    POSTGRES_DB=gitea
+    POSTGRES_USER: "gitea"
+    POSTGRES_PASSWORD: "gitea"
+    POSTGRES_DB: "gitea"
 
 build:
   docker:
     web: Dockerfile
 
 run:
-  web: ./run.sh
\ No newline at end of file
+  web: ./run.sh