diff --git a/CMakeLists.txt b/CMakeLists.txt
index 0de5a622a..a9a607ef4 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -323,14 +323,14 @@ set(GNSSSDR_PROTOBUF_MIN_VERSION "3.0.0")
 ################################################################################
 set(GNSSSDR_GFLAGS_LOCAL_VERSION "2.2.2")
 set(GNSSSDR_GLOG_LOCAL_VERSION "0.5.0")
-set(GNSSSDR_ARMADILLO_LOCAL_VERSION "10.4.x")
+set(GNSSSDR_ARMADILLO_LOCAL_VERSION "10.5.x")
 set(GNSSSDR_GTEST_LOCAL_VERSION "1.10.x")
 set(GNSSSDR_GTEST_LOCAL_VERSION_POST_CMAKE_3_19 "f5e592d8ee5ffb1d9af5be7f715ce3576b8bf9c4")  # Used with CMake >= 3.19
 set(GNSSSDR_GNSS_SIM_LOCAL_VERSION "master")
 set(GNSSSDR_GPSTK_LOCAL_VERSION "8.0.0")
 set(GNSSSDR_MATIO_LOCAL_VERSION "1.5.21")
 set(GNSSSDR_PUGIXML_LOCAL_VERSION "1.11.4")
-set(GNSSSDR_PROTOCOLBUFFERS_LOCAL_VERSION "3.16.0")
+set(GNSSSDR_PROTOCOLBUFFERS_LOCAL_VERSION "3.17.0")
 set(GNSSSDR_BENCHMARK_LOCAL_VERSION "1.5.3")
 set(GNSSSDR_MATHJAX_EXTERNAL_VERSION "2.7.7")
 
diff --git a/README.md b/README.md
index eac9d2e42..3ef11edb5 100644
--- a/README.md
+++ b/README.md
@@ -292,9 +292,9 @@ $ 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 http://sourceforge.net/projects/arma/files/armadillo-10.4.0.tar.xz
-$ tar xvfz armadillo-10.4.0.tar.xz
-$ cd armadillo-10.4.0
+$ wget http://sourceforge.net/projects/arma/files/armadillo-10.5.0.tar.xz
+$ tar xvfz armadillo-10.5.0.tar.xz
+$ cd armadillo-10.5.0
 $ cmake .
 $ make
 $ sudo make install
@@ -395,9 +395,9 @@ $ sudo apt-get install autoconf automake libtool curl make g++ unzip
 and then:
 
 ```
-$ wget https://github.com/protocolbuffers/protobuf/releases/download/v3.16.0/protobuf-cpp-3.16.0.tar.gz
-$ tar xvfz protobuf-cpp-3.16.0.tar.gz
-$ cd protobuf-3.16.0
+$ wget https://github.com/protocolbuffers/protobuf/releases/download/v3.17.0/protobuf-cpp-3.17.0.tar.gz
+$ tar xvfz protobuf-cpp-3.17.0.tar.gz
+$ cd protobuf-3.17.0
 $ ./autogen.sh
 $ ./configure
 $ make