How to update PHP version from 5.4.16 to 5.6.20 or a newer version in WordPress – CentOS

I have a Centos 7.7. server where I am hosting my website. I tried to update the PHP version from the CLI but nothing has changed on WordPress:

“You cannot update because WordPress 5.2.4 requires PHP version 5.6.20 or higher. You are running version 5.4.16.”

# php -v
PHP 7.1.30 (cli) (built: Aug 21 2019 09:27:22) ( NTS )
Copyright (c) 1997-2018 The PHP Group
Zend Engine v3.1.0, Copyright (c) 1998-2018 Zend Technologies

# rpm -qa|grep php
rh-php71-php-json-7.1.30-1.el7.x86_64
rh-php71-php-cli-7.1.30-1.el7.x86_64
php-gd-5.4.16-46.1.el7_7.x86_64
php-5.4.16-46.1.el7_7.x86_64
php-mysql-5.4.16-46.1.el7_7.x86_64
rh-php71-php-7.1.30-1.el7.x86_64
rh-php71-php-zip-7.1.30-1.el7.x86_64
php-mcrypt-5.4.16-9.el7.x86_64
php-cli-5.4.16-46.1.el7_7.x86_64
php-mbstring-5.4.16-46.1.el7_7.x86_64
rh-php71-runtime-1-1.el7.x86_64
php-common-5.4.16-46.1.el7_7.x86_64
php-xmlrpc-5.4.16-46.1.el7_7.x86_64
rh-php71-php-common-7.1.30-1.el7.x86_64
php-pdo-5.4.16-46.1.el7_7.x86_64
php-xml-5.4.16-46.1.el7_7.x86_64

# httpd -M
[Fri Nov 15 13:57:00.257580 2019] [so:warn] [pid 14807] AH01574: module rewrite_module is already loaded, skipping
Loaded Modules:
core_module (static)
so_module (static)
http_module (static)
rewrite_module (shared)
access_compat_module (shared)
actions_module (shared)
alias_module (shared)
allowmethods_module (shared)
auth_basic_module (shared)
auth_digest_module (shared)
authn_anon_module (shared)
authn_core_module (shared)
authn_dbd_module (shared)
authn_dbm_module (shared)
authn_file_module (shared)
authn_socache_module (shared)
authz_core_module (shared)
authz_dbd_module (shared)
authz_dbm_module (shared)
authz_groupfile_module (shared)
authz_host_module (shared)
authz_owner_module (shared)
authz_user_module (shared)
autoindex_module (shared)
cache_module (shared)
cache_disk_module (shared)
data_module (shared)
dbd_module (shared)
deflate_module (shared)
dir_module (shared)
dumpio_module (shared)
echo_module (shared)
env_module (shared)
expires_module (shared)
ext_filter_module (shared)
filter_module (shared)
headers_module (shared)
include_module (shared)
info_module (shared)
log_config_module (shared)
logio_module (shared)
mime_magic_module (shared)
mime_module (shared)
negotiation_module (shared)
remoteip_module (shared)
reqtimeout_module (shared)
setenvif_module (shared)
slotmem_plain_module (shared)
slotmem_shm_module (shared)
socache_dbm_module (shared)
socache_memcache_module (shared)
socache_shmcb_module (shared)
status_module (shared)
substitute_module (shared)
suexec_module (shared)
unique_id_module (shared)
unixd_module (shared)
userdir_module (shared)
version_module (shared)
vhost_alias_module (shared)
dav_module (shared)
dav_fs_module (shared)
dav_lock_module (shared)
lua_module (shared)
mpm_prefork_module (shared)
proxy_module (shared)
lbmethod_bybusyness_module (shared)
lbmethod_byrequests_module (shared)
lbmethod_bytraffic_module (shared)
lbmethod_heartbeat_module (shared)
proxy_ajp_module (shared)
proxy_balancer_module (shared)
proxy_connect_module (shared)
proxy_express_module (shared)
proxy_fcgi_module (shared)
proxy_fdpass_module (shared)
proxy_ftp_module (shared)
proxy_http_module (shared)
proxy_scgi_module (shared)
proxy_wstunnel_module (shared)
ssl_module (shared)
systemd_module (shared)
cgi_module (shared)
ldap_module (shared)
authnz_ldap_module (shared)
php5_module (shared)

I don’t have cPanel and I need to find a way to update directly from the server.
Also I’m using Apache and is not a shared hosting.
Thanks.