diff --git a/test/integration/roles/setup_postgresql_db/tasks/main.yml b/test/integration/roles/setup_postgresql_db/tasks/main.yml
index 47219875ef6..fbcc9cab725 100644
--- a/test/integration/roles/setup_postgresql_db/tasks/main.yml
+++ b/test/integration/roles/setup_postgresql_db/tasks/main.yml
@@ -70,11 +70,11 @@
   when: ansible_os_family == 'Debian'
 
 - name: Generate pt_BR locale (Red Hat)
-  command: localedef -f UTF-8 -i pt_BR pt_BR
+  command: localedef -f ISO-8859-1 -i pt_BR pt_BR
   when: ansible_os_family == 'RedHat'
 
 - name: Generate es_MX locale (Red Hat)
-  command: localedef -f UTF-8 -i es_MX es_MX
+  command: localedef -f ISO-8859-1 -i es_MX es_MX
   when: ansible_os_family == 'RedHat'
 
 - name: restart postgresql service