diff --git a/internal/mysql/util.go b/internal/mysql/util.go
index 6f34f200..fcf9b6d8 100644
--- a/internal/mysql/util.go
+++ b/internal/mysql/util.go
@@ -7,10 +7,8 @@ import (
 )
 
 var dubiousErrorNumbers = []uint16{
-	1040, // Symbol: ER_CON_COUNT_ERROR; SQLSTATE: 08004
 	1129, // Symbol: ER_HOST_IS_BLOCKED; SQLSTATE: HY000
 	1130, // Symbol: ER_HOST_NOT_PRIVILEGED; SQLSTATE: HY000
-	1203, // Symbol: ER_TOO_MANY_USER_CONNECTIONS; SQLSTATE: 42000
 	3159, // Symbol: ER_SECURE_TRANSPORT_REQUIRED; SQLSTATE: HY000
 	1045, // Symbol: ER_ACCESS_DENIED_ERROR; SQLSTATE: 28000
 	1044, // Symbol: ER_DBACCESS_DENIED_ERROR; SQLSTATE: 42000