diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 9a810a2..cc25d22 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -58,3 +58,4 @@ jobs:
         fail_ci_if_error: true
         directory: FFMpegCore.Test/TestResults
         token: ${{ secrets.CODECOV_TOKEN }}
+        os: windows