diff --git a/infra/delta-aws.conf b/infra/delta-aws.conf
index b080161bfb..66fa1110ac 100644
--- a/infra/delta-aws.conf
+++ b/infra/delta-aws.conf
@@ -6,12 +6,14 @@ app {
   database {
     read = ${app.defaults.database.access} {
       pool-size = 15
+      host = ${POSTGRES_READER_ENDPOINT}
     }
     write = ${app.defaults.database.access} {
       pool-size = 15
     }
     streaming = ${app.defaults.database.access} {
       pool-size = 50
+      host = ${POSTGRES_READER_ENDPOINT}
     }
 
     name     = "nexus_user"