diff --git a/tests/googletest-download/CMakeLists.txt.in b/tests/googletest-download/CMakeLists.txt.in
index aff4f6f..5c2a362 100644
--- a/tests/googletest-download/CMakeLists.txt.in
+++ b/tests/googletest-download/CMakeLists.txt.in
@@ -1,6 +1,6 @@
 # Taken from https://github.com/google/googletest/blob/master/googletest/README.md#incorporating-into-an-existing-cmake-project
 
-cmake_minimum_required(VERSION 2.8.2)
+cmake_minimum_required(VERSION 3.6)
 
 project(googletest-download NONE)
 
@@ -9,6 +9,7 @@ include(ExternalProject)
 ExternalProject_Add(googletest
     GIT_REPOSITORY    https://github.com/google/googletest.git
     GIT_TAG           master
+    GIT_SHALLOW       1
     SOURCE_DIR        "${CMAKE_CURRENT_BINARY_DIR}/googletest-src"
     BINARY_DIR        "${CMAKE_CURRENT_BINARY_DIR}/googletest-build"
     CONFIGURE_COMMAND ""