diff --git a/README.Rmd b/README.Rmd
index 88899a5..07b68aa 100644
--- a/README.Rmd
+++ b/README.Rmd
@@ -33,7 +33,7 @@ You can install the development version of `mfair` from [GitHub](https://github.
 devtools::install_github("YangLabHKUST/mfair", build_vignettes = TRUE)
 ```
 
-Please note that it can take several minutes to build the vignette.
+Please note that it can take several minutes to build the vignettes.
 
 ## Examples
 
diff --git a/README.md b/README.md
index 59923f2..7d283f9 100644
--- a/README.md
+++ b/README.md
@@ -29,7 +29,7 @@ You can install the development version of `mfair` from
 devtools::install_github("YangLabHKUST/mfair", build_vignettes = TRUE)
 ```
 
-Please note that it can take several minutes to build the vignette.
+Please note that it can take several minutes to build the vignettes.
 
 ## Examples