diff --git a/.github/workflows/CI-windows.yml b/.github/workflows/CI-windows.yml
index d9f317e36..8271baacb 100644
--- a/.github/workflows/CI-windows.yml
+++ b/.github/workflows/CI-windows.yml
@@ -57,7 +57,6 @@ jobs:
         uses: jurplel/install-qt-action@v2
         with:
           modules: 'qtcharts'
-          mirror: 'http://mirrors.ocf.berkeley.edu/qt/'
 
       - name: Build GUI x64 release
         run: |