diff --git a/appveyor.yml b/appveyor.yml
deleted file mode 100644
index c79e7de4..00000000
--- a/appveyor.yml
+++ /dev/null
@@ -1,201 +0,0 @@
-environment:
-  USER:
-    secure: fXgF9uyy6sT0JoVOR7BoqA==
-
-  PASS:
-    secure: 0bXSOVjf9x8L7nErTivu92TF1FwNosTjFJQPmxp8Dys=
-
-  matrix:
-    - PYTHON: "C:\\Python36"
-      ENABLE_CONTRIB: 0
-      ENABLE_HEADLESS: 0
-
-    - PYTHON: "C:\\Python36-x64"
-      ENABLE_CONTRIB: 0
-      ENABLE_HEADLESS: 0
-
-    - PYTHON: "C:\\Python37"
-      ENABLE_CONTRIB: 0
-      ENABLE_HEADLESS: 0
-
-    - PYTHON: "C:\\Python37-x64"
-      ENABLE_CONTRIB: 0
-      ENABLE_HEADLESS: 0
-
-    - PYTHON: "C:\\Python38"
-      ENABLE_CONTRIB: 0
-      ENABLE_HEADLESS: 0
-
-    - PYTHON: "C:\\Python38-x64"
-      ENABLE_CONTRIB: 0
-      ENABLE_HEADLESS: 0
-
-    - PYTHON: "C:\\Python39"
-      ENABLE_CONTRIB: 0
-      ENABLE_HEADLESS: 0
-
-    - PYTHON: "C:\\Python39-x64"
-      ENABLE_CONTRIB: 0
-      ENABLE_HEADLESS: 0
-
-    - PYTHON: "C:\\Python36"
-      ENABLE_CONTRIB: 1
-      ENABLE_HEADLESS: 0
-
-    - PYTHON: "C:\\Python36-x64"
-      ENABLE_CONTRIB: 1
-      ENABLE_HEADLESS: 0
-
-    - PYTHON: "C:\\Python37"
-      ENABLE_CONTRIB: 1
-      ENABLE_HEADLESS: 0
-
-    - PYTHON: "C:\\Python37-x64"
-      ENABLE_CONTRIB: 1
-      ENABLE_HEADLESS: 0
-
-    - PYTHON: "C:\\Python38"
-      ENABLE_CONTRIB: 1
-      ENABLE_HEADLESS: 0
-
-    - PYTHON: "C:\\Python38-x64"
-      ENABLE_CONTRIB: 1
-      ENABLE_HEADLESS: 0
-
-    - PYTHON: "C:\\Python39"
-      ENABLE_CONTRIB: 1
-      ENABLE_HEADLESS: 0
-
-    - PYTHON: "C:\\Python39-x64"
-      ENABLE_CONTRIB: 1
-      ENABLE_HEADLESS: 0
-
-    - PYTHON: "C:\\Python36"
-      ENABLE_CONTRIB: 0
-      ENABLE_HEADLESS: 1
-
-    - PYTHON: "C:\\Python36-x64"
-      ENABLE_CONTRIB: 0
-      ENABLE_HEADLESS: 1
-
-    - PYTHON: "C:\\Python37"
-      ENABLE_CONTRIB: 0
-      ENABLE_HEADLESS: 1
-
-    - PYTHON: "C:\\Python37-x64"
-      ENABLE_CONTRIB: 0
-      ENABLE_HEADLESS: 1
-
-    - PYTHON: "C:\\Python38"
-      ENABLE_CONTRIB: 0
-      ENABLE_HEADLESS: 1
-
-    - PYTHON: "C:\\Python38-x64"
-      ENABLE_CONTRIB: 0
-      ENABLE_HEADLESS: 1
-
-    - PYTHON: "C:\\Python39"
-      ENABLE_CONTRIB: 0
-      ENABLE_HEADLESS: 1
-
-    - PYTHON: "C:\\Python39-x64"
-      ENABLE_CONTRIB: 0
-      ENABLE_HEADLESS: 1
-
-    - PYTHON: "C:\\Python36"
-      ENABLE_CONTRIB: 1
-      ENABLE_HEADLESS: 1
-
-    - PYTHON: "C:\\Python36-x64"
-      ENABLE_CONTRIB: 1
-      ENABLE_HEADLESS: 1
-
-    - PYTHON: "C:\\Python37"
-      ENABLE_CONTRIB: 1
-      ENABLE_HEADLESS: 1
-
-    - PYTHON: "C:\\Python37-x64"
-      ENABLE_CONTRIB: 1
-      ENABLE_HEADLESS: 1
-
-    - PYTHON: "C:\\Python38"
-      ENABLE_CONTRIB: 1
-      ENABLE_HEADLESS: 1
-
-    - PYTHON: "C:\\Python38-x64"
-      ENABLE_CONTRIB: 1
-      ENABLE_HEADLESS: 1
-
-    - PYTHON: "C:\\Python39"
-      ENABLE_CONTRIB: 1
-      ENABLE_HEADLESS: 1
-
-    - PYTHON: "C:\\Python39-x64"
-      ENABLE_CONTRIB: 1
-      ENABLE_HEADLESS: 1
-
-matrix:
-    fast_finish: true
-
-install:
-  - ps: |
-      if (-not (Test-Path $env:PYTHON)) {
-        curl -o install_python.ps1 https://raw.githubusercontent.com/matthew-brett/multibuild/devel/install_python.ps1
-        .\install_python.ps1
-      }
-  - ps: if (-not (Test-Path $env:PYTHON)) { throw "No $env:PYTHON" }
-  - "set PATH=%PYTHON%;%PYTHON%\\Scripts;%PATH%"
-  - python --version
-
-build_script:
-- cmd: |
-    "%PYTHON%\\python.exe" -m pip install --upgrade pip
-    "%PYTHON%\\python.exe" -m pip install --upgrade setuptools
-    set "CI_BUILD=1" && "%PYTHON%\\python.exe" -m pip wheel --wheel-dir=%cd%\dist . --verbose
-
-before_test:
-- ps: |
-
-    cd ${Env:APPVEYOR_BUILD_FOLDER}\tests
-    $env:PYTHONWARNINGS = "ignore:::pip._internal.cli.base_command"
-    &"${Env:PYTHON}\\python.exe" -m pip install --user --no-warn-script-location (ls "../dist/opencv_*.whl")
-    if ($LastExitCode -ne 0) {throw $LastExitCode}
-
-test_script:
-- cmd: |
-
-    cd %APPVEYOR_BUILD_FOLDER%\tests
-    "%PYTHON%\\python.exe" -m unittest test
-
-artifacts:
-- path: dist\opencv*.whl
-  name: wheels
-
-deploy_script:
-- ps: |
-
-    if (${Env:APPVEYOR_REPO_TAG} -eq "true") {
-      cd ${Env:APPVEYOR_BUILD_FOLDER}
-      if (${Env:ENABLE_CONTRIB} -eq 0) {
-        if (${Env:ENABLE_HEADLESS} -eq 0) {
-          echo "This is a default build. Deployment will be done to PyPI entry opencv-python."
-        }
-        else {
-          echo "This is a headless build. Deployment will be done to PyPI entry opencv-python-headless."
-        }
-      }
-      else {
-        if (${Env:ENABLE_HEADLESS} -eq 0) {
-          echo "This is a contrib build. Deployment will be done to PyPI entry opencv-contrib-python."
-        }
-        else {
-          echo "This is a headless contrib build. Deployment will be done to PyPI entry opencv-contrib-python-headless."
-        }
-      }
-
-      &"${Env:PYTHON}\\python.exe" -m pip install twine
-      &"${Env:PYTHON}\\python.exe" -m twine upload -u ${Env:USER} -p ${Env:PASS} --skip-existing dist/opencv*
-    }
-    else {
-      echo "Tag not set, deployment skipped."
-    }