Cannot install broom package

Hello,

I've problems installing several packages in my R on Fedora 27 64 bit. I 
found out that it has to do something with a missing  compiler 
(libgfortran.so.3, see below).
It works if I downgrade the current version of libgfortran to the 
specified version by downloading libgfortran-6.2.1-2.fc25.x86_64.rpm and 
manually installing it.
However, I don't want to mess up my system, because the current version 
of libgfortran is replaced by it.

Is there any other solution to my problem? Can I use e.g. "broom" (see 
below) without having to downgrade libgfortran?

Thanks! Cheers
Hans

install.packages("broom")

Installing package into 
?/home/hans/R/x86_64-redhat-linux-gnu-library/3.4?
(as ?lib? is unspecified)
versuche URL 'https://cran.rstudio.com/src/contrib/broom_0.4.3.tar.gz'
Content type 'application/x-gzip' length 1397648 bytes (1.3 MB)
==================================================
downloaded 1.3 MB

* installing *source* package ?broom? ...
** Paket ?broom? erfolgreich entpackt und MD5 Summen ?berpr?ft
** R
** inst
** preparing package for lazy loading
Error : .onLoad failed in loadNamespace() for 'mnormt', details:
   call: dyn.load(file, DLLpath = DLLpath, ...)
   error: kann shared object 
'/home/hans/R/x86_64-redhat-linux-gnu-library/3.4/mnormt/libs/mnormt.so' 
nicht laden:
   libgfortran.so.3: cannot open shared object file: No such file or 
directory
ERROR: lazy loading failed for package ?broom?
* removing ?/home/hans/R/x86_64-redhat-linux-gnu-library/3.4/broom?
Warning in install.packages :
   installation of package ?broom? had non-zero exit status

The downloaded source packages are in
	?/tmp/RtmprofgpM/downloaded_packages?