diff --git a/README.md b/README.md
index c7aeae44e..4b5645a2c 100644
--- a/README.md
+++ b/README.md
@@ -189,9 +189,9 @@ $ sudo apt-get install libblas-dev liblapack-dev       # For Debian/Ubuntu/Linux
 $ sudo yum install lapack-devel blas-devel             # For Fedora/CentOS/RHEL
 $ sudo zypper install lapack-devel blas-devel          # For OpenSUSE
 $ sudo pacman -S blas lapack                           # For Arch Linux
-$ wget https://sourceforge.net/projects/arma/files/armadillo-9.100.5.tar.xz
-$ tar xvfz armadillo-9.100.5.tar.xz
-$ cd armadillo-9.100.5
+$ wget https://sourceforge.net/projects/arma/files/armadillo-9.200.7.tar.xz
+$ tar xvfz armadillo-9.200.7.tar.xz
+$ cd armadillo-9.200.7
 $ cmake .
 $ make
 $ sudo make install