diff --git a/.github/workflows/main.yml b/.github/workflows/main.yml
index 17ed9f12..5fb6a2e1 100644
--- a/.github/workflows/main.yml
+++ b/.github/workflows/main.yml
@@ -126,7 +126,7 @@ jobs:
     - uses: actions/checkout@v4
     - name: install macOS software
       run: |
-        brew install make automake
+        brew install make automake libtool
     - name: setup
       run: |
         ./autogen.sh