diff --git a/.github/workflows/macos.yml b/.github/workflows/macos.yml
index 69491687..cc3deff4 100644
--- a/.github/workflows/macos.yml
+++ b/.github/workflows/macos.yml
@@ -27,6 +27,7 @@ jobs:
 
       - name: Install dependencies
         run: |
+          brew update
           brew upgrade
           brew install boost boost-python3 help2man