 <p>Date::Manip requires Perl 5.10 to function, see the <a href="http://cpansearch.perl.org/src/SBECK/Date-Manip-6.11/META.yml" rel="nofollow noreferrer">META.yml</a>:</p> <pre><code>requires: ... perl: 5.010 </code></pre> <p>The <a href="http://search.cpan.org/CPAN/authors/id/S/SB/SBECK/Date-Manip-5.56.tar.gz" rel="nofollow noreferrer">older version (5.56)</a> instead only requires perl 5.001 to function and should therefore be safe for you to install.</p> <p>In other words, if you want that latest version you'll have to update your system's perl to at least 5.10. CentOS comes with an old 5.8.8 version, unfortunately.</p>