diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index 51b9048a..8f433fb2 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -13,7 +13,7 @@ jobs:
     steps:
     - uses: actions/checkout@e2f20e631ae6d7dd3b768f56a5d2af784dd54791 # tag=v2.5.0
     - name: Set up Ruby
-      uses: ruby/setup-ruby@ece82769428359c077b5a5eaff268902a303c101 # tag=v1.120.0
+      uses: ruby/setup-ruby@8ddb7b3348b3951590db24c346e94ebafdabc926 # v1.121.0
       with:
         bundler-cache: true # runs 'bundle install' and caches installed gems automatically
     - name: Run tests
diff --git a/.github/workflows/schedule-doc-report.yml b/.github/workflows/schedule-doc-report.yml
index 4d858a2a..403026a9 100644
--- a/.github/workflows/schedule-doc-report.yml
+++ b/.github/workflows/schedule-doc-report.yml
@@ -10,7 +10,7 @@ jobs:
     steps:
     - uses: actions/checkout@e2f20e631ae6d7dd3b768f56a5d2af784dd54791 # tag=v2.5.0
     - name: Set up Ruby
-      uses: ruby/setup-ruby@ece82769428359c077b5a5eaff268902a303c101 # tag=v1.120.0
+      uses: ruby/setup-ruby@8ddb7b3348b3951590db24c346e94ebafdabc926 # v1.121.0
       with:
         bundler-cache: true # runs 'bundle install' and caches installed gems automatically
     - name: Generate report
diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
index 02eed36a..d3f1a7c1 100644
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@@ -11,7 +11,7 @@ jobs:
     steps:
     - uses: actions/checkout@e2f20e631ae6d7dd3b768f56a5d2af784dd54791 # tag=v2.5.0
     - name: Set up Ruby
-      uses: ruby/setup-ruby@ece82769428359c077b5a5eaff268902a303c101 # tag=v1.120.0
+      uses: ruby/setup-ruby@8ddb7b3348b3951590db24c346e94ebafdabc926 # v1.121.0
       with:
         bundler-cache: true # runs 'bundle install' and caches installed gems automatically
     - name: Run tests