How to enable TLSv1.3 in Centos with Apache2

I am using CentOS 5 with Apache2. Into an additional config file: /etc/apache2/conf/extra/ssl.conf I have put these lines: SSLHonorCipherOrder On SSLProtocol all -SSLv2 -SSLv3 -TLSv1 -TLSv1.1 SSLCipherSuite TLS_AES_256_GCM_SHA384:TLS_CHACHA20_POLY1305_SHA256:TLS_AES_128_GCM_SHA256 I still can't enable TLSv1.3. The error says when restarting the service > Starting httpd: Syntax error on line 113 of /etc/apache2/conf/extra/ssl.conf: > SSLProtocol: Illegal protocol 'TLSv1.3' ------------- System: CentOS 5.11 (Final). OpenSSL: 1.1.1a 20 Nov 2018.