diff --git a/.github/workflows/validate-brewfiles.yml b/.github/workflows/validate-brewfiles.yml
index 591ad70..a255f45 100644
--- a/.github/workflows/validate-brewfiles.yml
+++ b/.github/workflows/validate-brewfiles.yml
@@ -14,7 +14,7 @@ jobs:
         uses: actions/checkout@9c091bb21b7c1c1d1991bb908d89e4e9dddfe3e0 # v7
 
       - name: Set up Homebrew
-        uses: Homebrew/actions/setup-homebrew@main
+        uses: Homebrew/actions/setup-homebrew@64bb52ce84da6455bdbd6df88ac86151ba2ff16c # main
 
       - name: Validate Brewfiles
         shell: bash