diff --git a/src/deployment/charts/vela/templates/autoscaler/config.yaml b/src/deployment/charts/vela/templates/autoscaler/config.yaml
index 0739614c..67740ee5 100644
--- a/src/deployment/charts/vela/templates/autoscaler/config.yaml
+++ b/src/deployment/charts/vela/templates/autoscaler/config.yaml
@@ -53,7 +53,7 @@ data:
     client_tls_key_file = /vela/certs/tls.key
     client_tls_cert_file = /vela/certs/tls.crt
     client_tls_ca_file = /vela/certs/tls.crt
-    auth_type = plain
+    auth_type = scram-sha-256
     auth_file = /vela/config/users.txt
     auth_user = vela
     auth_query = SELECT * FROM pgbouncer.get_auth($1)