diff --git a/.github/workflows/windows.yml b/.github/workflows/windows.yml
index 4acb9b74fc..f42b9c11e1 100644
--- a/.github/workflows/windows.yml
+++ b/.github/workflows/windows.yml
@@ -64,7 +64,7 @@ jobs:
             ${{ runner.os }}-vcpkg-installed-
       - name: Install libraries with vcpkg
         run: |
-          vcpkg --triplet x64-windows install libffi readline zlib
+          vcpkg --triplet x64-windows install libffi libyaml readline zlib
       - uses: actions/cache@v2
         with:
           path: C:\Users\runneradmin\AppData\Local\Temp\chocolatey
@@ -104,7 +104,9 @@ jobs:
           set | C:\msys64\usr\bin\sort > new.env
           C:\msys64\usr\bin\comm -13 old.env new.env >> %GITHUB_ENV%
           del *.env
-          for %%I in (libffi) do mklink %%I.dll C:\vcpkg\installed\x64-windows\bin\%%I.dll
+      - name: link libraries
+        run: |
+          for %%I in (libffi yaml) do mklink %%I.dll C:\vcpkg\installed\x64-windows\bin\%%I.dll
       - name: Configure
         run: >-
           ../src/win32/configure.bat --disable-install-doc