diff --git a/.github/workflows/annocheck.yml b/.github/workflows/annocheck.yml
index bbffefbbf0..c88cf8e302 100644
--- a/.github/workflows/annocheck.yml
+++ b/.github/workflows/annocheck.yml
@@ -74,7 +74,7 @@ jobs:
           builddir: build
           makeup: true
 
-      - uses: ruby/setup-ruby@161cd54b698f1fb3ea539faab2e036d409550e3c # v1.187.0
+      - uses: ruby/setup-ruby@50ba3386b050ad5b97a41fcb81240cbee1d1821f # v1.188.0
         with:
           ruby-version: '3.0'
           bundler: none
diff --git a/.github/workflows/baseruby.yml b/.github/workflows/baseruby.yml
index 00ad9f98cd..0ea012fdfc 100644
--- a/.github/workflows/baseruby.yml
+++ b/.github/workflows/baseruby.yml
@@ -51,7 +51,7 @@ jobs:
           - ruby-3.3
 
     steps:
-      - uses: ruby/setup-ruby@161cd54b698f1fb3ea539faab2e036d409550e3c # v1.187.0
+      - uses: ruby/setup-ruby@50ba3386b050ad5b97a41fcb81240cbee1d1821f # v1.188.0
         with:
           ruby-version: ${{ matrix.ruby }}
           bundler: none
diff --git a/.github/workflows/check_dependencies.yml b/.github/workflows/check_dependencies.yml
index cc2061272e..bd13446a4c 100644
--- a/.github/workflows/check_dependencies.yml
+++ b/.github/workflows/check_dependencies.yml
@@ -55,7 +55,7 @@ jobs:
 
       - uses: ./.github/actions/setup/directories
 
-      - uses: ruby/setup-ruby@161cd54b698f1fb3ea539faab2e036d409550e3c # v1.187.0
+      - uses: ruby/setup-ruby@50ba3386b050ad5b97a41fcb81240cbee1d1821f # v1.188.0
         with:
           ruby-version: '3.0'
           bundler: none
diff --git a/.github/workflows/mingw.yml b/.github/workflows/mingw.yml
index c0be674d4b..d9381a9b98 100644
--- a/.github/workflows/mingw.yml
+++ b/.github/workflows/mingw.yml
@@ -66,7 +66,7 @@ jobs:
 
     steps:
       - name: Set up Ruby & MSYS2
-        uses: ruby/setup-ruby@161cd54b698f1fb3ea539faab2e036d409550e3c # v1.187.0
+        uses: ruby/setup-ruby@50ba3386b050ad5b97a41fcb81240cbee1d1821f # v1.188.0
         with:
           ruby-version: ${{ matrix.baseruby }}
 
diff --git a/.github/workflows/rjit-bindgen.yml b/.github/workflows/rjit-bindgen.yml
index fd1b638d9e..cf2ba4671d 100644
--- a/.github/workflows/rjit-bindgen.yml
+++ b/.github/workflows/rjit-bindgen.yml
@@ -47,7 +47,7 @@ jobs:
 
     steps:
       - name: Set up Ruby
-        uses: ruby/setup-ruby@161cd54b698f1fb3ea539faab2e036d409550e3c # v1.187.0
+        uses: ruby/setup-ruby@50ba3386b050ad5b97a41fcb81240cbee1d1821f # v1.188.0
         with:
           ruby-version: '3.1'
 
diff --git a/.github/workflows/spec_guards.yml b/.github/workflows/spec_guards.yml
index c6f0983eeb..65f493aed7 100644
--- a/.github/workflows/spec_guards.yml
+++ b/.github/workflows/spec_guards.yml
@@ -47,7 +47,7 @@ jobs:
     steps:
       - uses: actions/checkout@692973e3d937129bcbf40652eb9f2f61becf3332 # v4.1.7
 
-      - uses: ruby/setup-ruby@161cd54b698f1fb3ea539faab2e036d409550e3c # v1.187.0
+      - uses: ruby/setup-ruby@50ba3386b050ad5b97a41fcb81240cbee1d1821f # v1.188.0
         with:
           ruby-version: ${{ matrix.ruby }}
           bundler: none
diff --git a/.github/workflows/ubuntu.yml b/.github/workflows/ubuntu.yml
index cd94d62b5f..88ecf1eca2 100644
--- a/.github/workflows/ubuntu.yml
+++ b/.github/workflows/ubuntu.yml
@@ -69,7 +69,7 @@ jobs:
         with:
           arch: ${{ matrix.arch }}
 
-      - uses: ruby/setup-ruby@161cd54b698f1fb3ea539faab2e036d409550e3c # v1.187.0
+      - uses: ruby/setup-ruby@50ba3386b050ad5b97a41fcb81240cbee1d1821f # v1.188.0
         with:
           ruby-version: '3.0'
           bundler: none
diff --git a/.github/workflows/wasm.yml b/.github/workflows/wasm.yml
index c43641b936..beb21fd26d 100644
--- a/.github/workflows/wasm.yml
+++ b/.github/workflows/wasm.yml
@@ -100,7 +100,7 @@ jobs:
         run: |
           echo "WASI_SDK_PATH=/opt/wasi-sdk" >> $GITHUB_ENV
 
-      - uses: ruby/setup-ruby@161cd54b698f1fb3ea539faab2e036d409550e3c # v1.187.0
+      - uses: ruby/setup-ruby@50ba3386b050ad5b97a41fcb81240cbee1d1821f # v1.188.0
         with:
           ruby-version: '3.0'
           bundler: none
diff --git a/.github/workflows/windows.yml b/.github/workflows/windows.yml
index cb492aebc3..4a3d8b9c2e 100644
--- a/.github/workflows/windows.yml
+++ b/.github/workflows/windows.yml
@@ -88,7 +88,7 @@ jobs:
             ${{ steps.find-tools.outputs.needs }}
         if: ${{ steps.find-tools.outputs.needs != '' }}
 
-      - uses: ruby/setup-ruby@161cd54b698f1fb3ea539faab2e036d409550e3c # v1.187.0
+      - uses: ruby/setup-ruby@50ba3386b050ad5b97a41fcb81240cbee1d1821f # v1.188.0
         with:
           ruby-version: '3.0'
           bundler: none
diff --git a/.github/workflows/yjit-ubuntu.yml b/.github/workflows/yjit-ubuntu.yml
index 6c220fc5dc..daf54ce600 100644
--- a/.github/workflows/yjit-ubuntu.yml
+++ b/.github/workflows/yjit-ubuntu.yml
@@ -134,7 +134,7 @@ jobs:
 
       - uses: ./.github/actions/setup/ubuntu
 
-      - uses: ruby/setup-ruby@161cd54b698f1fb3ea539faab2e036d409550e3c # v1.187.0
+      - uses: ruby/setup-ruby@50ba3386b050ad5b97a41fcb81240cbee1d1821f # v1.188.0
         with:
           ruby-version: '3.0'
           bundler: none