diff --git a/.github/workflows/test-build.yml b/.github/workflows/test-build.yml
index bf05ac4..a00fe8a 100644
--- a/.github/workflows/test-build.yml
+++ b/.github/workflows/test-build.yml
@@ -34,8 +34,8 @@ jobs:
     - name: install dependencies
       run: |
         brew install emacs
-        brew install gcc
-        brew install autoconf
+        brew install gcc-9
+        brew install autoconf automake libtool
     - name: Run test
       run: |
         ./autogen.sh