diff --git a/src/test/regress/expected/password_1.out b/src/test/regress/expected/password_1.out
index 9d2cc94f371..bd0c2e48de0 100644
--- a/src/test/regress/expected/password_1.out
+++ b/src/test/regress/expected/password_1.out
@@ -128,6 +128,13 @@ SELECT rolname, rolpassword not like '%A6xHKoH/494E941doaPOYg==%' as is_rolpassw
  regress_passwd_sha_len2 | t
 (3 rows)
 
+-- Test that valid hashes that are too long are rejected
+CREATE ROLE regress_passwd10 PASSWORD 'SCRAM-SHA-256$000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000004096:wNFxNSk1hAXBkgub8py3bg==$65zC6E+R0U7tiYTC9+Wtq4Thw6gUDj3eDCINij8TflU=:rC1I7tcVugrHEY2DT0iPjGyjM4aJxkMM9n8WBxtUtHU=';
+ERROR:  encrypted password is too long
+DETAIL:  Encrypted passwords must be no longer than 512 bytes.
+ALTER ROLE regress_passwd9 PASSWORD 'SCRAM-SHA-256$000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000004096:wNFxNSk1hAXBkgub8py3bg==$65zC6E+R0U7tiYTC9+Wtq4Thw6gUDj3eDCINij8TflU=:rC1I7tcVugrHEY2DT0iPjGyjM4aJxkMM9n8WBxtUtHU=';
+ERROR:  encrypted password is too long
+DETAIL:  Encrypted passwords must be no longer than 512 bytes.
 DROP ROLE regress_passwd1;
 DROP ROLE regress_passwd2;
 DROP ROLE regress_passwd3;