diff --git a/.github/workflows/validate.yml b/.github/workflows/validate.yml
index 33c0781..fec57ab 100644
--- a/.github/workflows/validate.yml
+++ b/.github/workflows/validate.yml
@@ -41,7 +41,7 @@ jobs:
           - os: macos-15
             python-version: "3.14"
     steps:
-      - uses: actions/checkout@df4cb1c069e1874edd31b4311f1884172cec0e10 # v6
+      - uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v6
         with:
           fetch-depth: 0
           persist-credentials: false
@@ -82,7 +82,7 @@ jobs:
       matrix:
         python-version: ["3.12", "3.13"]
     steps:
-      - uses: actions/checkout@df4cb1c069e1874edd31b4311f1884172cec0e10 # v6
+      - uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v6
         with:
           fetch-depth: 0
           persist-credentials: false
@@ -108,7 +108,7 @@ jobs:
     name: package / Ubuntu / Python 3.13
     runs-on: ubuntu-24.04
     steps:
-      - uses: actions/checkout@df4cb1c069e1874edd31b4311f1884172cec0e10 # v6
+      - uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v6
         with:
           fetch-depth: 0
           persist-credentials: false
@@ -200,7 +200,7 @@ jobs:
     needs: [required]
     runs-on: ubuntu-24.04
     steps:
-      - uses: actions/checkout@df4cb1c069e1874edd31b4311f1884172cec0e10 # v6
+      - uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v6
         with:
           fetch-depth: 0
           persist-credentials: false