diff --git a/.github/workflows/windows.yml b/.github/workflows/windows.yml
index ce3ca7f09a..19facbf7b3 100644
--- a/.github/workflows/windows.yml
+++ b/.github/workflows/windows.yml
@@ -635,7 +635,7 @@ jobs:
               -DCMAKE_RC_COMPILER=arm-mingw32ce-windres \
               -DMINGW32CE_LIBRARY_DIR="$HOME/opt/mingw32ce/arm-mingw32ce/lib" \
               -DCMAKE_IGNORE_PREFIX_PATH="$(brew --prefix)" \
-              -DCMAKE_UNITY_BUILD=ON -DCMAKE_UNITY_BUILD_BATCH_SIZE=30 -DCURL_TEST_BUNDLES=ON \
+              -DCMAKE_UNITY_BUILD=ON -DCMAKE_UNITY_BUILD_BATCH_SIZE=50 -DCURL_TEST_BUNDLES=ON \
               -DBUILD_SHARED_LIBS=ON -DBUILD_STATIC_LIBS=ON -DBUILD_STATIC_CURL=OFF \
               -DCURL_WERROR=ON \
               -DCURL_USE_SCHANNEL=ON \