diff --git a/.github/workflows/linux.yml b/.github/workflows/linux.yml
index 503bcad..f8f8cb7 100644
--- a/.github/workflows/linux.yml
+++ b/.github/workflows/linux.yml
@@ -25,7 +25,7 @@ jobs:
           - ubuntu-latest
     name: Ruby ${{ matrix.ruby }} unit testing on ${{ matrix.os }}
     steps:
-    - uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2
+    - uses: actions/checkout@df4cb1c069e1874edd31b4311f1884172cec0e10 # v6.0.3
     - uses: ruby/setup-ruby@c4e5b1316158f92e3d49443a9d58b31d25ac0f8f # v1.306.0
       with:
         ruby-version: ${{ matrix.ruby }}
diff --git a/.github/workflows/windows.yml b/.github/workflows/windows.yml
index 5e395be..7fc3be3 100644
--- a/.github/workflows/windows.yml
+++ b/.github/workflows/windows.yml
@@ -25,7 +25,7 @@ jobs:
           - windows-latest
     name: Ruby ${{ matrix.ruby }} unit testing on ${{ matrix.os }}
     steps:
-    - uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2
+    - uses: actions/checkout@df4cb1c069e1874edd31b4311f1884172cec0e10 # v6.0.3
     - uses: ruby/setup-ruby@c4e5b1316158f92e3d49443a9d58b31d25ac0f8f # v1.306.0
       with:
         ruby-version: ${{ matrix.ruby }}