[root@gabriel ~]#  rpm -qa | grep libevent
libevent-1.1a-3.2
[root@gabriel ~]# yum update yum
Loading "installonlyn" plugin
Setting up Update Process
Setting up repositories
rpmforge                                                             [1/7]
core                                                                 [2/7]
updates                                                              [3/7]
greysector-all                                                       [4/7]
greysector                                                           [5/7]
greysector-all-noarch                                                [6/7]
extras                                                               [7/7]
Reading repository metadata in from local files
Could not find update match for yum
No Packages marked for Update/Obsoletion
[root@gabriel ~]# yum update libevent
Loading "installonlyn" plugin
Setting up Update Process
Setting up repositories
rpmforge                                                             [1/7]
core                                                                 [2/7]
updates                                                              [3/7]
greysector-all                                                       [4/7]
greysector                                                           [5/7]
greysector-all-noarch                                                [6/7]
extras                                                               [7/7]
Reading repository metadata in from local files
Resolving Dependencies
--> Populating transaction set with selected packages. Please wait.
---> Package libevent.i386 0:1.2-1.fc3.rf set to be updated
--> Running transaction check
--> Processing Dependency: libevent-1.1a.so.1 for package: nfs-utils
--> Finished Dependency Resolution
Error: Missing Dependency: libevent-1.1a.so.1 is needed by package nfs-utils
[root@gabriel ~]# yum update nfs-utils
Loading "installonlyn" plugin
Setting up Update Process
Setting up repositories
rpmforge                                                             [1/7]
core                                                                 [2/7]
updates                                                              [3/7]
greysector-all                                                       [4/7]
greysector                                                           [5/7]
greysector-all-noarch                                                [6/7]
extras                                                               [7/7]
Reading repository metadata in from local files
Could not find update match for nfs-utils
No Packages marked for Update/Obsoletion
[root@gabriel ~]#