diff --git a/pg_hba.conf b/pg_hba.conf
index 1e464255e..c10dfae09 100644
--- a/pg_hba.conf
+++ b/pg_hba.conf
@@ -27,18 +27,18 @@
 # maintenance (custom daily cronjobs, replication, and similar tasks).
 #
 # Database administrative login by Unix domain socket
-local   all             postgres                                trust
+local   all             postgres                                md5
 
 # TYPE  DATABASE        USER            ADDRESS                 METHOD
 
 # "local" is for Unix domain socket connections only
-local   all             all                                     trust
+local   all             all                                     md5
 # IPv4 local connections:
-host    all             all             127.0.0.1/32            trust
+host    all             all             127.0.0.1/32            md5
 # IPv6 local connections:
-host    all             all             ::1/128                 trust
+host    all             all             ::1/128                 md5
 # Allow replication connections from localhost, by a user with the
 # replication privilege.
-local   replication     all                                     trust
-host    replication     all             127.0.0.1/32            trust
-host    replication     all             ::1/128                 trust
\ No newline at end of file
+local   replication     all                                     md5
+host    replication     all             127.0.0.1/32            md5
+host    replication     all             ::1/128                 md5