diff --git a/.github/workflows/build-cmake.yml b/.github/workflows/build-cmake.yml
index 82a432c..f550758 100644
--- a/.github/workflows/build-cmake.yml
+++ b/.github/workflows/build-cmake.yml
@@ -7,8 +7,11 @@ jobs:
 
     strategy:
       matrix:
-        qt_version: [5.12.6, 5.13.2, 5.14.0, 5.15.0]
+        qt_version: [5.12.6, 5.13.2, 5.14.0, 5.15.0, 6.0.0]
         platform: [ubuntu-latest, windows-latest, macos-latest]
+        include:
+          - qt_version: 6.0.0
+            additional_arguments: -D QT_DEFAULT_MAJOR_VERSION=6
 
     runs-on: ${{ matrix.platform }}
 
@@ -21,7 +24,7 @@ jobs:
         version: ${{ matrix.qt_version }}
 
     - name: cmake
-      run: cmake .
+      run: cmake . ${{ matrix.additional_arguments }}
 
     - name: cmake build
       run: cmake --build .
@@ -29,17 +32,17 @@ jobs:
     - name: Build example - basic (cmake)
       working-directory: examples/basic/
       run: |
-        cmake .
+        cmake . ${{ matrix.additional_arguments }}
         cmake --build .
 
     - name: Build example - calculator (cmake)
       working-directory: examples/calculator/
       run: |
-        cmake .
+        cmake . ${{ matrix.additional_arguments }}
         cmake --build .
 
     - name: Build example - sending_arguments (cmake)
       working-directory: examples/sending_arguments/
       run: |
-        cmake .
+        cmake . ${{ matrix.additional_arguments }}
         cmake --build .
diff --git a/examples/basic/CMakeLists.txt b/examples/basic/CMakeLists.txt
index 49be29c..c142923 100644
--- a/examples/basic/CMakeLists.txt
+++ b/examples/basic/CMakeLists.txt
@@ -4,10 +4,9 @@ project(basic LANGUAGES CXX)
 
 # SingleApplication base class
 set(QAPPLICATION_CLASS QCoreApplication)
+add_subdirectory(../.. SingleApplication)
 
 add_executable(basic main.cpp)
 
-find_package(Qt5 COMPONENTS Core REQUIRED)
-add_subdirectory(../.. SingleApplication)
 target_link_libraries(${PROJECT_NAME} SingleApplication::SingleApplication)
 
diff --git a/examples/calculator/CMakeLists.txt b/examples/calculator/CMakeLists.txt
index 990bff5..82305f0 100644
--- a/examples/calculator/CMakeLists.txt
+++ b/examples/calculator/CMakeLists.txt
@@ -6,6 +6,9 @@ set(CMAKE_AUTOMOC ON)
 
 # SingleApplication base class
 set(QAPPLICATION_CLASS QApplication)
+add_subdirectory(../.. SingleApplication)
+
+find_package(Qt${QT_DEFAULT_MAJOR_VERSION} COMPONENTS Core REQUIRED)
 
 add_executable(${PROJECT_NAME}
     button.h
@@ -15,6 +18,4 @@ add_executable(${PROJECT_NAME}
     main.cpp
 )
 
-find_package(Qt5 COMPONENTS Widgets REQUIRED)
-add_subdirectory(../.. SingleApplication)
 target_link_libraries(${PROJECT_NAME} SingleApplication::SingleApplication)
diff --git a/examples/sending_arguments/CMakeLists.txt b/examples/sending_arguments/CMakeLists.txt
index 06c740f..2cc5597 100644
--- a/examples/sending_arguments/CMakeLists.txt
+++ b/examples/sending_arguments/CMakeLists.txt
@@ -6,6 +6,9 @@ set(CMAKE_AUTOMOC ON)
 
 # SingleApplication base class
 set(QAPPLICATION_CLASS QCoreApplication)
+add_subdirectory(../.. SingleApplication)
+
+find_package(Qt${QT_DEFAULT_MAJOR_VERSION} COMPONENTS Core REQUIRED)
 
 add_executable(${PROJECT_NAME}
     main.cpp
@@ -14,6 +17,4 @@ add_executable(${PROJECT_NAME}
     main.cpp
 )
 
-find_package(Qt5 COMPONENTS Core REQUIRED)
-add_subdirectory(../.. SingleApplication)
 target_link_libraries(${PROJECT_NAME} SingleApplication::SingleApplication)