diff --git a/factors.Rmd b/factors.Rmd
index 81bbec6..2e96b58 100644
--- a/factors.Rmd
+++ b/factors.Rmd
@@ -14,9 +14,7 @@ For more historical context on factors, I recommend [_stringsAsFactors: An unaut
 To work with factors, we'll use the __forcats__ package, which provides tools for dealing with **cat**egorical variables (and it's an anagram of factors!). It provides a wide range of helpers for working with factors. We'll also need dplyr for some data manipulation, and ggplot2 for visualisation.
 
 ```{r setup, message = FALSE}
-# devtools::install_github("hadley/forcats")
 library(forcats)
-
 library(ggplot2)
 library(dplyr)
 ```