diff --git a/appveyor.yml b/appveyor.yml
index 19645421b4b5e045959fd242a97689b8cc2534fc..3e755db9e577b993f5f1f9873e1087bdb28648d7 100644
--- a/appveyor.yml
+++ b/appveyor.yml
@@ -179,6 +179,7 @@ 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 (ls "../dist/opencv_*.whl")
     if ($LastExitCode -ne 0) {throw $LastExitCode}