diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 4a5434f3..5d4f08d8 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -45,7 +45,7 @@ jobs:
         if: startsWith(matrix.os, 'ubuntu-') && matrix.ruby == '3.2'
         run: sudo apt-get install --no-install-recommends --assume-yes libyaml-dev
       - uses: actions/checkout@v4
-      - uses: ruby/setup-ruby@7dc18ff0ca6e3630d3f29d2a85ebf6cc27ae9d6c # v1.177.0
+      - uses: ruby/setup-ruby@943103cae7d3f1bb1e4951d5fcc7928b40e4b742 # v1.177.1
         env:
           # https://github.com/kachick/ruby-ulid/blob/104834846baf5caa1e8536a11c43acdd56fc849c/CONTRIBUTING.md#adding-dependencies-for-this-gem
           BUNDLE_WITHOUT: development
diff --git a/.github/workflows/lint.yml b/.github/workflows/lint.yml
index 53a9d3a3..2b8a6a88 100644
--- a/.github/workflows/lint.yml
+++ b/.github/workflows/lint.yml
@@ -14,7 +14,7 @@ jobs:
     runs-on: 'ubuntu-24.04'
     steps:
       - uses: actions/checkout@v4
-      - uses: ruby/setup-ruby@7dc18ff0ca6e3630d3f29d2a85ebf6cc27ae9d6c # v1.177.0
+      - uses: ruby/setup-ruby@943103cae7d3f1bb1e4951d5fcc7928b40e4b742 # v1.177.1
         with:
           bundler-cache: true # runs 'bundle install' and caches installed gems automatically
       - run: bundle exec rake rubocop
diff --git a/.github/workflows/signature.yml b/.github/workflows/signature.yml
index 23bd3e1d..5a623aa2 100644
--- a/.github/workflows/signature.yml
+++ b/.github/workflows/signature.yml
@@ -32,7 +32,7 @@ jobs:
     runs-on: 'ubuntu-24.04'
     steps:
       - uses: actions/checkout@v4
-      - uses: ruby/setup-ruby@7dc18ff0ca6e3630d3f29d2a85ebf6cc27ae9d6c # v1.177.0
+      - uses: ruby/setup-ruby@943103cae7d3f1bb1e4951d5fcc7928b40e4b742 # v1.177.1
         with:
           bundler-cache: true # runs 'bundle install' and caches installed gems automatically
       - run: bundle exec rake rbs
@@ -41,7 +41,7 @@ jobs:
     runs-on: 'ubuntu-24.04'
     steps:
       - uses: actions/checkout@v4
-      - uses: ruby/setup-ruby@7dc18ff0ca6e3630d3f29d2a85ebf6cc27ae9d6c # v1.177.0
+      - uses: ruby/setup-ruby@943103cae7d3f1bb1e4951d5fcc7928b40e4b742 # v1.177.1
         with:
           bundler-cache: true # runs 'bundle install' and caches installed gems automatically
       - run: bundle exec rake signature:validate_yard