diff --git a/.github/workflows/build-gcc.yml b/.github/workflows/build-gcc.yml
index 20a4058..0f1edd4 100644
--- a/.github/workflows/build-gcc.yml
+++ b/.github/workflows/build-gcc.yml
@@ -20,13 +20,13 @@ jobs:
             heob32.exe
             heob64.exe
           compression-level: 9
-      - shell: bash
+      - shell: cmd
         run: |
           make BITS=32 PREF= allocer32.exe
           make BITS=32 PREF= test
         env:
           PATH: c:\mingw32\bin;c:\msys64\usr\bin
-      - shell: bash
+      - shell: cmd
         run: |
           make BITS=64 PREF= allocer64.exe
           make BITS=64 PREF= test