diff --git a/.github/workflows/publish.yml b/.github/workflows/publish.yml
index f498ee3..0d7811c 100644
--- a/.github/workflows/publish.yml
+++ b/.github/workflows/publish.yml
@@ -13,10 +13,10 @@ jobs:
       pull-requests: write
     steps:
       - name: Set up Homebrew
-        uses: Homebrew/actions/setup-homebrew@master
+        uses: Homebrew/actions/setup-homebrew@fc695c54c2032716dd4cedd007489c8e32fc8a5d  # master
 
       - name: Set up git
-        uses: Homebrew/actions/git-user-config@master
+        uses: Homebrew/actions/git-user-config@fc695c54c2032716dd4cedd007489c8e32fc8a5d  # master
 
       - name: Pull bottles
         env:
@@ -26,7 +26,7 @@ jobs:
           PULL_REQUEST: ${{ github.event.pull_request.number }}
         run: brew pr-pull --debug --tap="${GITHUB_REPOSITORY}" "${PULL_REQUEST}"
       - name: Push commits
-        uses: Homebrew/actions/git-try-push@master
+        uses: Homebrew/actions/git-try-push@fc695c54c2032716dd4cedd007489c8e32fc8a5d  # master
         with:
           token: ${{ github.token }}
           branch: main
diff --git a/.github/workflows/tests.yml b/.github/workflows/tests.yml
index 7ad40b1..6e270a9 100644
--- a/.github/workflows/tests.yml
+++ b/.github/workflows/tests.yml
@@ -13,7 +13,7 @@ jobs:
     steps:
       - name: Set up Homebrew
         id: set-up-homebrew
-        uses: Homebrew/actions/setup-homebrew@master
+        uses: Homebrew/actions/setup-homebrew@fc695c54c2032716dd4cedd007489c8e32fc8a5d  # master
 
       - name: Cache Homebrew Bundler RubyGems
         id: cache