diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index 8d74aaf9..9787560b 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -25,7 +25,7 @@ jobs:
       - name: checkout
         uses: actions/checkout@v6
 
-      - uses: ruby/setup-ruby@0cb964fd540e0a24c900370abf38a33466142735 # pin@v1.305.0
+      - uses: ruby/setup-ruby@c4e5b1316158f92e3d49443a9d58b31d25ac0f8f # pin@v1.306.0
         with:
           bundler-cache: true
 
diff --git a/.github/workflows/lint.yml b/.github/workflows/lint.yml
index 71b0a327..e774101d 100644
--- a/.github/workflows/lint.yml
+++ b/.github/workflows/lint.yml
@@ -18,7 +18,7 @@ jobs:
       - name: checkout
         uses: actions/checkout@v6
 
-      - uses: ruby/setup-ruby@0cb964fd540e0a24c900370abf38a33466142735 # pin@v1.305.0
+      - uses: ruby/setup-ruby@c4e5b1316158f92e3d49443a9d58b31d25ac0f8f # pin@v1.306.0
         with:
           bundler-cache: true
 
diff --git a/.github/workflows/release.yml b/.github/workflows/release.yml
index 089c7fdc..4531fac0 100644
--- a/.github/workflows/release.yml
+++ b/.github/workflows/release.yml
@@ -22,7 +22,7 @@ jobs:
       - name: checkout
         uses: actions/checkout@v6
 
-      - uses: ruby/setup-ruby@0cb964fd540e0a24c900370abf38a33466142735 # pin@v1.305.0
+      - uses: ruby/setup-ruby@c4e5b1316158f92e3d49443a9d58b31d25ac0f8f # pin@v1.306.0
         with:
           bundler-cache: true
 
diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
index 99685d93..fbfd2f59 100644
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@@ -23,7 +23,7 @@ jobs:
       - name: Update .ruby-version with matrix value
         run: echo "${{ matrix.ruby_version }}" >| .ruby-version
 
-      - uses: ruby/setup-ruby@0cb964fd540e0a24c900370abf38a33466142735 # pin@v1.305.0
+      - uses: ruby/setup-ruby@c4e5b1316158f92e3d49443a9d58b31d25ac0f8f # pin@v1.306.0
         with:
           bundler-cache: true