dependency problem for gdal-libs and libproj

We are using the postgresql (9.3) yum repository on CentOs 7 and we can no longer update
our servers. The error is:

# yum update
...
Error: Package: gdal-libs-1.11.4-12.rhel7.x86_64 (pgdg93)
           Requires: libproj.so.12()(64bit)
 You could try using --skip-broken to work around the problem
 You could try running: rpm -Va --nofiles --nodigest

libproj.so.12 is part of proj version 4.9 but the available version in the
epel repository is 4.8.

Thanks,

Christophe