diff --git a/.github/workflows/CI-unixish.yml b/.github/workflows/CI-unixish.yml
index c6cedc3f8..b40b72d56 100644
--- a/.github/workflows/CI-unixish.yml
+++ b/.github/workflows/CI-unixish.yml
@@ -43,7 +43,6 @@ jobs:
         uses: jurplel/install-qt-action@v2
         with:
           modules: 'qtcharts'
-          mirror: 'http://mirrors.ocf.berkeley.edu/qt/'
 
       - name: Test CMake build
         run: |