diff --git a/CMakeLists.txt b/CMakeLists.txt
index 877e7614b..703d474b5 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -411,11 +411,11 @@ set(GNSSSDR_PROTOBUF_MIN_VERSION "3.0.0")
 ################################################################################
 set(GNSSSDR_GFLAGS_LOCAL_VERSION "2.2.2")
 set(GNSSSDR_GLOG_LOCAL_VERSION "0.4.0")
-set(GNSSSDR_ARMADILLO_LOCAL_VERSION "9.300.x")
+set(GNSSSDR_ARMADILLO_LOCAL_VERSION "9.500.x")
 set(GNSSSDR_GTEST_LOCAL_VERSION "1.8.1")
 set(GNSSSDR_GNSS_SIM_LOCAL_VERSION "master")
 set(GNSSSDR_GPSTK_LOCAL_VERSION "2.10.6")
-set(GNSSSDR_MATIO_LOCAL_VERSION "1.5.14")
+set(GNSSSDR_MATIO_LOCAL_VERSION "1.5.15")
 set(GNSSSDR_PUGIXML_LOCAL_VERSION "1.9")
 set(GNSSSDR_PROTOCOLBUFFERS_LOCAL_VERSION "3.8.0")
 
diff --git a/README.md b/README.md
index 9bba7a0d9..b79fc9e6d 100644
--- a/README.md
+++ b/README.md
@@ -220,9 +220,9 @@ $ 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-9.300.2.tar.xz
-$ tar xvfz armadillo-9.300.2.tar.xz
-$ cd armadillo-9.300.2
+$ wget http://sourceforge.net/projects/arma/files/armadillo-9.400.4.tar.xz
+$ tar xvfz armadillo-9.400.4.tar.xz
+$ cd armadillo-9.400.4
 $ cmake .
 $ make
 $ sudo make install