diff --git a/.github/workflows/makefile.yml b/.github/workflows/makefile.yml
index 0ce9cc8..230c479 100644
--- a/.github/workflows/makefile.yml
+++ b/.github/workflows/makefile.yml
@@ -13,6 +13,7 @@ jobs:
 
     steps:
     - uses: actions/checkout@v3
+    - uses: carlosperate/arm-none-eabi-gcc-action@v1
 
     - name: clean
       working-directory: ./numworks_port