diff --git a/CMakeLists.txt b/CMakeLists.txt
index a7373ace74..823b688c9e 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -490,7 +490,7 @@ endif(NOT VOLK_GNSSSDR_FOUND)
 # gflags - https://github.com/gflags/gflags
 ################################################################################
 set(LOCAL_GFLAGS false)
-set(gflags_RELEASE 2.1.2)
+set(gflags_RELEASE 2.2.0)
 find_package(GFlags)
 if (NOT GFlags_FOUND)
      message (STATUS " gflags library has not been found.")
diff --git a/README.md b/README.md
index 5cd3dd4325..b1c3b30df1 100644
--- a/README.md
+++ b/README.md
@@ -143,9 +143,9 @@ The full stop separated from ```cmake``` by a space is important. [CMake](http:/
 #### Install [Gflags](https://github.com/gflags/gflags "Gflags' Homepage"), a commandline flags processing module for C++:
 
 ~~~~~~
-$ wget https://github.com/gflags/gflags/archive/v2.1.2.tar.gz
-$ tar xvfz v2.1.2.tar.gz
-$ cd gflags-2.1.2
+$ wget https://github.com/gflags/gflags/archive/v2.2.0.tar.gz
+$ tar xvfz v2.2.0.tar.gz
+$ cd gflags-2.2.0
 $ cmake -DBUILD_SHARED_LIBS=ON -DBUILD_STATIC_LIBS=OFF -DBUILD_gflags_nothreads_LIB=OFF .
 $ make
 $ sudo make install