EL7 postgis24_10 breaks yum upgrade

hello,

after installing pgdg-centos10, postgresql10-server and postgis24_10 on CentOS 7.4, yum upgrade refuses to run due to a dependency issue:

---
Resolving Dependencies
--> Running transaction check
---> Package libgeotiff.x86_64 0:1.2.5-14.el7 will be updated
--> Processing Dependency: libgeotiff.so.1.2()(64bit) for package: gdal-libs-1.11.4-1.el7.x86_64
---> Package libgeotiff.x86_64 0:1.4.0-1.rhel7 will be an update
--> Finished Dependency Resolution
Error: Package: gdal-libs-1.11.4-1.el7.x86_64 (@epel)
Requires: libgeotiff.so.1.2()(64bit)
Removing: libgeotiff-1.2.5-14.el7.x86_64 (@epel)
libgeotiff.so.1.2()(64bit)
Updated By: libgeotiff-1.4.0-1.rhel7.x86_64 (pgdg10)
Not found
---

the updated libgeotiff from the PGDG repository doesn't seem to be necessary, so i can exclude that from yum to fix the problem temporarily, but this seems like a problem with the repository, unless i've done something wrong installing it?

thanks, liss.