diff --git a/.github/workflows/copilot-setup-steps.yml b/.github/workflows/copilot-setup-steps.yml
index 2d8273d..12feec3 100644
--- a/.github/workflows/copilot-setup-steps.yml
+++ b/.github/workflows/copilot-setup-steps.yml
@@ -21,7 +21,7 @@ jobs:
           node-version-file: .node-version
           cache: npm
       - run: npm ci
-      - uses: ruby/setup-ruby@d354de180d0c9e813cfddfcbdc079945d4be589b # v1.275.0
+      - uses: ruby/setup-ruby@4c24fa5ec04b2e79eb40571b1cee2a0d2b705771 # v1.278.0
         with:
           ruby-version: ruby
           bundler-cache: true
diff --git a/.github/workflows/dependabot-rebuild.yml b/.github/workflows/dependabot-rebuild.yml
index dcfc617..0cb023d 100644
--- a/.github/workflows/dependabot-rebuild.yml
+++ b/.github/workflows/dependabot-rebuild.yml
@@ -44,7 +44,7 @@ jobs:
             chore: rebuild dist
 
       # Update and push .licenses if changed.
-      - uses: ruby/setup-ruby@d354de180d0c9e813cfddfcbdc079945d4be589b # v1.275.0
+      - uses: ruby/setup-ruby@4c24fa5ec04b2e79eb40571b1cee2a0d2b705771 # v1.278.0
         with:
           ruby-version: ruby
           bundler-cache: true
diff --git a/.github/workflows/licensed.yml b/.github/workflows/licensed.yml
index 28baa9d..9df7869 100644
--- a/.github/workflows/licensed.yml
+++ b/.github/workflows/licensed.yml
@@ -37,7 +37,7 @@ jobs:
           node-version-file: .node-version
           cache: npm
       - run: npm ci
-      - uses: ruby/setup-ruby@d354de180d0c9e813cfddfcbdc079945d4be589b # v1.275.0
+      - uses: ruby/setup-ruby@4c24fa5ec04b2e79eb40571b1cee2a0d2b705771 # v1.278.0
         with:
           ruby-version: ruby
           bundler-cache: true