diff --git a/.github/workflows/lint.yml b/.github/workflows/lint.yml
index 0190270..9403953 100644
--- a/.github/workflows/lint.yml
+++ b/.github/workflows/lint.yml
@@ -12,7 +12,7 @@ jobs:
     runs-on: ubuntu-latest
 
     steps:
-    - uses: actions/checkout@v6
+    - uses: actions/checkout@v6.0.3
     - name: Set up Python
       uses: actions/setup-python@v6
       with:
diff --git a/.github/workflows/publish.yml b/.github/workflows/publish.yml
index c9f25d6..6d85686 100644
--- a/.github/workflows/publish.yml
+++ b/.github/workflows/publish.yml
@@ -17,7 +17,7 @@ jobs:
 
     steps:
       - name: "Checkout repository"
-        uses: "actions/checkout@93cb6efe18208431cddfb8368fd83d5badbf9bfd"
+        uses: "actions/checkout@df4cb1c069e1874edd31b4311f1884172cec0e10"
 
       - name: "Setup Python"
         uses: "actions/setup-python@2e3e4b15a884dc73a63f962bff250a855150a234"
diff --git a/.github/workflows/run-tests.yml b/.github/workflows/run-tests.yml
index 41271af..6dd94c5 100644
--- a/.github/workflows/run-tests.yml
+++ b/.github/workflows/run-tests.yml
@@ -17,7 +17,7 @@ jobs:
         python-version: ["3.7", "3.8", "3.9", "3.10", "3.11", "3.12", "3.13", "3.14"]
 
     steps:
-    - uses: actions/checkout@93cb6efe18208431cddfb8368fd83d5badbf9bfd
+    - uses: actions/checkout@df4cb1c069e1874edd31b4311f1884172cec0e10
     - name: Set up Python ${{ matrix.python-version }}
       uses: actions/setup-python@v6
       with:
@@ -41,7 +41,7 @@ jobs:
     needs: tests
     steps:
       - name: "Checkout repository"
-        uses: "actions/checkout@93cb6efe18208431cddfb8368fd83d5badbf9bfd"
+        uses: "actions/checkout@df4cb1c069e1874edd31b4311f1884172cec0e10"
 
       - name: "Setup Python"
         uses: "actions/setup-python@2e3e4b15a884dc73a63f962bff250a855150a234"