diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index 851942ed..c47ce1d8 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -151,7 +151,7 @@ jobs:
       - uses: actions/checkout@v2
       - name: Install prerequisites
         run: >-
-          brew update
+          # brew update
 
           brew install
           cmake