diff --git a/CMakeLists.txt b/CMakeLists.txt
index 423ad1c65..e728ba8a5 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -733,8 +733,8 @@ if(NOT ARMADILLO_FOUND)
      message(STATUS " Armadillo will be downloaded and built automatically ")
      message(STATUS " when doing 'make'. ")
 
-     set(armadillo_RELEASE 5.200.2)
-     set(armadillo_MD5 "ef57ba4c473a3b67c672441a7face09e")
+     set(armadillo_RELEASE 6.200.2)
+     set(armadillo_MD5 "e07910be1a79b20fa2efe1006a274390")
 
      ExternalProject_Add(
          armadillo-${armadillo_RELEASE}
diff --git a/README.md b/README.md
index 47eaba305..34c93c509 100644
--- a/README.md
+++ b/README.md
@@ -94,9 +94,9 @@ In case you do not want to use PyBOMBS and prefer to build and install GNU Radio
 $ sudo apt-get install libopenblas-dev liblapack-dev   # For Debian/Ubuntu/LinuxMint
 $ sudo yum install lapack-devel blas-devel             # For Fedora/CentOS/RHEL
 $ sudo zypper install lapack-devel blas-devel          # For OpenSUSE
-$ wget http://sourceforge.net/projects/arma/files/armadillo-5.400.3.tar.gz
-$ tar xvfz armadillo-5.400.3.tar.gz
-$ cd armadillo-5.400.3
+$ wget http://sourceforge.net/projects/arma/files/armadillo-6.200.2.tar.gz
+$ tar xvfz armadillo-6.200.2.tar.gz
+$ cd armadillo-6.200.2
 $ cmake .
 $ make
 $ sudo make install