diff --git a/.github/workflows/lint.yml b/.github/workflows/lint.yml
index fa413f3..647062d 100644
--- a/.github/workflows/lint.yml
+++ b/.github/workflows/lint.yml
@@ -23,7 +23,7 @@ jobs:
   style:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v6
+      - uses: actions/checkout@v6.0.2
       - run: pipx run ruff check src test
       - run: pipx run ruff format --diff src test
 
@@ -33,6 +33,6 @@ jobs:
 
     steps:
       - name: Checkout
-        uses: actions/checkout@v6
+        uses: actions/checkout@v6.0.2
       - name: Codespell
         uses: codespell-project/actions-codespell@v2
diff --git a/.github/workflows/python-publish.yml b/.github/workflows/python-publish.yml
index 1caf4f8..8e1c752 100644
--- a/.github/workflows/python-publish.yml
+++ b/.github/workflows/python-publish.yml
@@ -13,7 +13,7 @@ jobs:
     runs-on: ubuntu-latest
 
     steps:
-    - uses: actions/checkout@v6
+    - uses: actions/checkout@v6.0.2
     - name: Set up Python
       uses: actions/setup-python@v6
       with:
diff --git a/.github/workflows/tox.yml b/.github/workflows/tox.yml
index 55270f3..2b03e91 100644
--- a/.github/workflows/tox.yml
+++ b/.github/workflows/tox.yml
@@ -40,7 +40,7 @@ jobs:
       DEPENDS: ${{ matrix.dependencies }}
 
     steps:
-      - uses: actions/checkout@v6
+      - uses: actions/checkout@v6.0.2
         with:
           fetch-depth: 0