diff --git a/.github/workflows/workflow.yml b/.github/workflows/workflow.yml
index cb11022af..0cad22a31 100644
--- a/.github/workflows/workflow.yml
+++ b/.github/workflows/workflow.yml
@@ -87,6 +87,9 @@ jobs:
           opam-local-packages: ${{ matrix.local-packages }}
           allow-prerelease-opam: true
 
+      - run: opam pin add mingw-w64-shims git+https://github.com/dra27/mingw-w64-shims.git#internals
+        if: ${{ runner.os == 'Windows' }}
+
       - run: opam install conf-libev
         if: ${{ matrix.libev == true }}