diff --git a/.github/workflows/test-llvm.yml b/.github/workflows/test-llvm.yml
index ffb9905..9633a5e 100644
--- a/.github/workflows/test-llvm.yml
+++ b/.github/workflows/test-llvm.yml
@@ -87,6 +87,8 @@ jobs:
             -DCMAKE_CXX_COMPILER=clang++ `
             -DLLVM_LIT_ARGS="-v --time-tests"
           ninja test-depends
+          cp c:\llvm-mingw\bin\libc++.dll bin
+          cp c:\llvm-mingw\bin\libunwind.dll bin
       - name: Run tests
         run: |
           cd llvm-project