just update 1.440 to 1.442 and then updated fstrigger from 0.17 to 0.18

after restarts of jenkins attempted to add an fstrigger to an exiting job and got a stack trace complaint that envinject plugin wasn't available

java.lang.NoClassDefFoundError: org/jenkinsci/plugins/envinject/EnvInjectAction
at org.jenkinsci.plugins.fstrigger.service.FSTriggerEnvVarsResolver.getEnvVars(FSTriggerEnvVarsResolver.java:27)
at org.jenkinsci.plugins.fstrigger.triggers.FolderContentTrigger.getFileInfoMaster(FolderContentTrigger.java:147)
at org.jenkinsci.plugins.fstrigger.triggers.FolderContentTrigger.getMd5Map(FolderContentTrigger.java:125)
at org.jenkinsci.plugins.fstrigger.triggers.FolderContentTrigger.refreshMemoryInfo(FolderContentTrigger.java:100)
at org.jenkinsci.plugins.fstrigger.triggers.FolderContentTrigger.start(FolderContentTrigger.java:350)
at org.jenkinsci.plugins.fstrigger.triggers.FolderContentTrigger.start(FolderContentTrigger.java:30)
at hudson.model.AbstractProject.submit(AbstractProject.java:1713)
at hudson.model.Project.submit(Project.java:192)
at hudson.model.Job.doConfigSubmit(Job.java:977)

should fstrigger update automatically pulled in dependency envinject or ????