diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 915da19..862162a 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -36,8 +36,6 @@ jobs:
     steps:
     - name: Checkout Code
       uses: actions/checkout@v2
-      with:
-          submodules: true
 
     - name: Configure (${{ matrix.configuration }})
       run: cmake -S . -Bbuild -DCMAKE_BUILD_TYPE=${{ matrix.configuration }}
diff --git a/.gitmodules b/.gitmodules
deleted file mode 100644
index 2b9629c..0000000
--- a/.gitmodules
+++ /dev/null
@@ -1,3 +0,0 @@
-[submodule "external/doctest"]
-	path = external/doctest
-	url = https://github.com/onqtam/doctest.git
diff --git a/CMakeLists.txt b/CMakeLists.txt
index 76ac583..03120d7 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -1,14 +1,14 @@
 # This file specifies how the project should be built, using CMake.
 # If you are unfamiliar with CMake, don't worry about all the details.
-# The sections you might want to edit are marked as such, and 
+# The sections you might want to edit are marked as such, and
 # the comments should hopefully make most of it clear.
 #
 # For many purposes, you may not need to change anything about this file.
 
-cmake_minimum_required(VERSION 3.12)
+cmake_minimum_required(VERSION 3.14)
 
 # Set project name, version and laguages here. (change as needed)
-# Version numbers are available by including "exampleConfig.h" in 
+# Version numbers are available by including "exampleConfig.h" in
 # the source. See exampleConfig.h.in for some more details.
 project(CPP_BOILERPLATE VERSION 1.2.3.4 LANGUAGES CXX)
 
@@ -70,10 +70,10 @@ target_enable_lto(main optimized)  # enable link-time-optimization if available
 
 # Set the properties you require, e.g. what C++ standard to use. Here applied to library and main (change as needed).
 set_target_properties(
-    ${LIBRARY_NAME} main 
-      PROPERTIES 
-        CXX_STANDARD 17 
-        CXX_STANDARD_REQUIRED YES 
+    ${LIBRARY_NAME} main
+      PROPERTIES
+        CXX_STANDARD 17
+        CXX_STANDARD_REQUIRED YES
         CXX_EXTENSIONS NO
 )
 
diff --git a/README.md b/README.md
index a9a19f1..4e8f633 100644
--- a/README.md
+++ b/README.md
@@ -11,7 +11,7 @@
 [![Average time to resolve an issue](http://isitmaintained.com/badge/resolution/bsamseth/cpp-project.svg)](http://isitmaintained.com/project/bsamseth/cpp-project "Average time to resolve an issue")
 [![Percentage of issues still open](http://isitmaintained.com/badge/open/bsamseth/cpp-project.svg)](http://isitmaintained.com/project/bsamseth/cpp-project "Percentage of issues still open")
 
-# Boiler plate for C++ projects 
+# Boiler plate for C++ projects
 
 This is a boiler plate for C++ projects. What you get:
 
@@ -41,16 +41,16 @@ This is a boiler plate for C++ projects. What you get:
 ```
 
 Sources go in [src/](src/), header files in [include/](include/), main programs in [app/](app), and
-tests go in [tests/](tests/) (compiled to `unit_tests` by default). 
+tests go in [tests/](tests/) (compiled to `unit_tests` by default).
 
-If you add a new executable, say `app/hello.cpp`, you only need to add the following two lines to [CMakeLists.txt](CMakeLists.txt): 
+If you add a new executable, say `app/hello.cpp`, you only need to add the following two lines to [CMakeLists.txt](CMakeLists.txt):
 
 ``` cmake
 add_executable(main app/main.cpp)   # Name of exec. and location of file.
 target_link_libraries(main PRIVATE ${LIBRARY_NAME})  # Link the executable to lib built from src/*.cpp (if it uses it).
 ```
 
-You can find the example source code that builds the `main` executable in [app/main.cpp](app/main.cpp) under the `Build` section in [CMakeLists.txt](CMakeLists.txt). 
+You can find the example source code that builds the `main` executable in [app/main.cpp](app/main.cpp) under the `Build` section in [CMakeLists.txt](CMakeLists.txt).
 If the executable you made does not use the library in [src/](src), then only the first line is needed.
 
 
@@ -89,20 +89,12 @@ upload this to Coveralls.io and/or Codecov.io
 ### Using the GitHub template
 Click the `Use this template` button to make a new repository from this template.
 
-**NB**: GitHub templates do not carry over submodules, which means you need to add those back _before_ you can build the project. Run the following after you have generated your new project:
-``` bash
-> git clone https://github.com/<your-username>/<your-repo-name>
-> git submodule add https://github.com/onqtam/doctest.git external/doctest
-> git commit -a --amend --no-edit
-> git push --force
-```
-
 ### From command line
 When starting a new project, you probably don't want the history of this repository. To start fresh you can use
 the [setup script](setup.sh) as follows:
 ``` bash
-> git clone --recurse-submodules https://github.com/bsamseth/cpp-project  # Or use ssh-link if you like.
+> git clone https://github.com/bsamseth/cpp-project  # Or use ssh-link if you like.
 > cd cpp-project
 > bash setup.sh
 ```
-The result is a fresh Git repository with one commit adding all files from the boiler plate. 
+The result is a fresh Git repository with one commit adding all files from the boiler plate.
diff --git a/app/main.cpp b/app/main.cpp
index ed8b2fe..15fa772 100644
--- a/app/main.cpp
+++ b/app/main.cpp
@@ -3,7 +3,7 @@
 // users, this can be left out.
 #ifdef ENABLE_DOCTEST_IN_LIBRARY
 #define DOCTEST_CONFIG_IMPLEMENT
-#include "doctest.h"
+#include "doctest/doctest.h"
 #endif
 
 #include <iostream>
diff --git a/appveyor.yml b/appveyor.yml
index ba43afd..bfb21e1 100644
--- a/appveyor.yml
+++ b/appveyor.yml
@@ -14,11 +14,11 @@ platform:
 configuration:
   - Debug
   - Release
-  
+
 # environment:
 #   matrix:
 #     - TOOLSET: v140
-  
+
 matrix:
   fast_finish: false
 
@@ -27,9 +27,6 @@ init:
   - cmd: cmake --version
   - cmd: msbuild /version
 
-install:
-  - git submodule update --init --recursive
-
 before_build:
   - cmake . -Bbuild -A%PLATFORM% -DCMAKE_BUILD_TYPE=%configuration%
 
@@ -37,10 +34,9 @@ build:
   project: build/CPP_BOILERPLATE.sln
   parallel: true
   verbosity: minimal
-  
+
 test_script:
   - cd build
   - set CTEST_OUTPUT_ON_FAILURE=1
-  - ctest -C %configuration% 
+  - ctest -C %configuration%
   - cd ..
-
diff --git a/cmake/Doctest.cmake b/cmake/Doctest.cmake
index a75364a..ba86915 100644
--- a/cmake/Doctest.cmake
+++ b/cmake/Doctest.cmake
@@ -1,6 +1,12 @@
 if(ENABLE_DOCTESTS)
     add_definitions(-DENABLE_DOCTEST_IN_LIBRARY)
-endif()
+    include(FetchContent)
+    FetchContent_Declare(
+            DocTest
+            GIT_REPOSITORY "https://github.com/onqtam/doctest"
+            GIT_TAG "932a2ca50666138256dae56fbb16db3b1cae133a"
+    )
 
-add_library(doctest INTERFACE)
-target_include_directories(doctest INTERFACE ${PROJECT_SOURCE_DIR}/external/doctest/doctest)
+    FetchContent_MakeAvailable(DocTest)
+    include_directories(${DOCTEST_INCLUDE_DIR})
+endif()
diff --git a/external/doctest b/external/doctest
deleted file mode 160000
index 503de03..0000000
--- a/external/doctest
+++ /dev/null
@@ -1 +0,0 @@
-Subproject commit 503de03ee2cbbfc58c2063dce36dc96f917f2da3
diff --git a/include/example.h b/include/example.h
index eedb53a..63df249 100644
--- a/include/example.h
+++ b/include/example.h
@@ -19,7 +19,7 @@ class Dummy {
 
 
 #ifdef ENABLE_DOCTEST_IN_LIBRARY
-#include "doctest.h"
+#include "doctest/doctest.h"
 TEST_CASE("we can have tests in headers if we want")
 {
     Dummy d;
diff --git a/setup.sh b/setup.sh
index 26ccd31..eaa77cc 100755
--- a/setup.sh
+++ b/setup.sh
@@ -11,12 +11,8 @@ email=$(git config user.email)
 if [[ "$1" ]]; then
 	git commit --amend --author="$1"
 else
-	git commit --amend --author="$name <$email>" 
+	git commit --amend --author="$name <$email>"
 fi
 
-# Initialize submodules: This should already be done when cloning, but there are ways to muck it
-# up if you do things in the wrong order. So just to be sure, we do it now.
-git submodule update --init --recursive
-
 # Remove the remote (you probably want your own instead).
 git remote remove origin
diff --git a/src/example.cpp b/src/example.cpp
index ab5d7b5..90ad6b2 100644
--- a/src/example.cpp
+++ b/src/example.cpp
@@ -13,7 +13,7 @@ bool Dummy::doSomething() {
 
 
 #ifdef ENABLE_DOCTEST_IN_LIBRARY
-#include "doctest.h"
+#include "doctest/doctest.h"
 TEST_CASE("we can have tests written here, to test impl. details")
 {
     CHECK(true);
diff --git a/tests/CMakeLists.txt b/tests/CMakeLists.txt
index e5f4dcd..57639b5 100644
--- a/tests/CMakeLists.txt
+++ b/tests/CMakeLists.txt
@@ -1,4 +1,4 @@
-cmake_minimum_required(VERSION 3.12)
+cmake_minimum_required(VERSION 3.14)
 
 # List all files containing tests. (Change as needed)
 set(TESTFILES        # All .cpp files in tests/
@@ -17,9 +17,9 @@ target_link_libraries(${TEST_MAIN} PRIVATE ${LIBRARY_NAME} doctest)
 set_target_properties(${TEST_MAIN} PROPERTIES RUNTIME_OUTPUT_DIRECTORY ${PROJECT_BINARY_DIR})
 target_set_warnings(${TEST_MAIN} ENABLE ALL AS_ERROR ALL DISABLE Annoying) # Set warnings (if needed).
 
-set_target_properties(${TEST_MAIN} PROPERTIES 
-    CXX_STANDARD 17 
-    CXX_STANDARD_REQUIRED YES 
+set_target_properties(${TEST_MAIN} PROPERTIES
+    CXX_STANDARD 17
+    CXX_STANDARD_REQUIRED YES
     CXX_EXTENSIONS NO
 )
 
@@ -30,4 +30,3 @@ add_test(
 
 # Adds a 'coverage' target.
 include(CodeCoverage)
-
diff --git a/tests/dummy.cpp b/tests/dummy.cpp
index 045318b..db12b73 100644
--- a/tests/dummy.cpp
+++ b/tests/dummy.cpp
@@ -1,4 +1,4 @@
-#include "doctest.h"
+#include "doctest/doctest.h"
 #include "example.h"
 
 // Tests that don't naturally fit in the headers/.cpp files directly
diff --git a/tests/main.cpp b/tests/main.cpp
index d2bc7a6..f54bc0e 100644
--- a/tests/main.cpp
+++ b/tests/main.cpp
@@ -1,5 +1,5 @@
 #define DOCTEST_CONFIG_IMPLEMENT_WITH_MAIN
-#include "doctest.h"
+#include "doctest/doctest.h"
 
 // This is all that is needed to compile a test-runner executable.
 // More tests can be added here, or in a new tests/*.cpp file.