diff --git a/.github/workflows/c-cpp.yml b/.github/workflows/c-cpp.yml
index 342e808..e199bd3 100644
--- a/.github/workflows/c-cpp.yml
+++ b/.github/workflows/c-cpp.yml
@@ -43,7 +43,13 @@ jobs:
       run: copy Makefile.win Makefile
     - name: install Windows libraries
       if: ${{ startsWith(matrix.target, 'windows') }}
-      run: pacman -S mingw-w64-x86_64-pcre
+      uses: msys2/setup-msys2@v2
+      with:
+       msystem: MINGW64
+       update: true
+       install: >-
+        mingw-w64-x86_64-gcc
+        mingw-w64-x86_64-pcre
     - name: dirs Windows
       if: ${{ startsWith(matrix.target, 'windows') }}
       run: cmd /C 'echo LIBS := -L "c:/program files/openssl/lib/VC/x64/MT" $(LIBS) >>Makefile.win && echo CFLAGS := -I "c:/program files/openssl/include" $(CFLAGS) >>Makefile.win && type Makefile.win && dir "c:/program files/openssl/lib"'