Unable to install package vegan to do CCA

I am trying to install the package "vegan", but I am have a couple of message error:
install.packages("vegan")
Warning in install.packages :
package ‘vegan’ is not available (for R version 3.3.2)

I tried:
install.packages("vegan",repos="http://cran.us.r-project.org")
but the message is the following:
Warning in install.packages :
unable to access index for repository:
cannot download all files
Warning in install.packages :
package ‘vegan’ is not available (for R version 3.3.2)
Warning in install.packages :
unable to access index for repository http: //cran.us.r-project.org/bin/macosx/mavericks/contrib/3.3:
cannot download all files

Can someone can hep me with this, please?
Thank you!

vegan package requires R >= 3.4 so you need to update your R version to install this package, the latest stable version is 3.6.3

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Oohhh Thank you!!! it worked now :)) it was that simple... I spent a week to try to install vegan on R.3.3.2