RHEL/CentOS5 deps broken?

I've in /etc/yum.repos.d/mondorescue.repo:

 [mondorescue]
 name=rhel 5 x86_64 - mondorescue Vanilla Packages
 baseurl=ftp://ftp.mondorescue.org//rhel/5/x86_64
 enabled=1
 gpgcheck=0
 gpgkey=ftp://ftp.mondorescue.org//rhel/5/x86_64/mondorescue.pubkey

and by some days i get this email:

 Hi,
 This is the automatic update system on link.

 There was a problem updating the system. The following error message
 was reported:

 Failed to build transaction: Missing Dependency: perl(ExtUtils::CBuilder) >= 0.27 is needed by package 1:perl-Module-Build-0.3607-1.el5.rf.noarch (mondorescue)

 If the problem persists, manual intervention may be required.
 Thank You,
 Your Computer

(i've another i386 CentOS5 box, same result)


Thanks.

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