diff --git a/.github/workflows/tests.yml b/.github/workflows/tests.yml
index 1e2290f..668ced2 100644
--- a/.github/workflows/tests.yml
+++ b/.github/workflows/tests.yml
@@ -36,7 +36,9 @@ jobs:
 
       - run: brew test-bot --only-tap-syntax
 
-      - run: brew test-bot --only-formulae
+      - run: |
+          brew update
+          brew test-bot --only-formulae
         if: github.event_name == 'pull_request'
 
       - name: Upload bottles as artifact