diff --git a/README.Rmd b/README.Rmd
index 6273caca..152360c2 100644
--- a/README.Rmd
+++ b/README.Rmd
@@ -94,7 +94,7 @@ __Operation Systems__
 | Windows | 4.1.3, 4.2.3, 4.3.2 and recent| 3.10.x, 3.9    |[![R-Windows](https://github.com/davidycliao/flaiR/actions/workflows/r_window.yml/badge.svg)](https://github.com/davidycliao/flaiR/actions/workflows/r_window.yml) |
 | Ubuntu  | 4.1.3, 4.2.3, 4.3.2 and recent| 3.10.x, 3.9    |[![R-ubuntu](https://github.com/davidycliao/flaiR/actions/workflows/r_ubuntu.yaml/badge.svg)](https://github.com/davidycliao/flaiR/actions/workflows/r_ubuntu.yaml)|
 
-*: _On R 4.2.1 and 4.0.5, particularly when using the Matrix package on ARM 64 architecture Macs (M1/M2/M3), compatibility issues with gfortran may occur. It's recommended to avoid this combination._
+*: _On R 4.2.1 and 4.0.5, particularly when using the Matrix package on ARM 64 architecture Macs (M1/M2/M3), compatibility issues with gfortran may occur. It's recommended to avoid these versions._
 
 <br>
 
diff --git a/README.md b/README.md
index 26142477..47908fdc 100644
--- a/README.md
+++ b/README.md
@@ -82,7 +82,7 @@ Science](https://davidycliao.github.io/flaiR/articles/tutorial.html#introduction
 
 \*: *On R 4.2.1 and 4.0.5, particularly when using the Matrix package on
 ARM 64 architecture Macs (M1/M2/M3), compatibility issues with gfortran
-may occur. It’s recommended to avoid this combination.*
+may occur. It’s recommended to avoid these versions.*
 
 <br>