diff --git a/.github/workflows/check_docs.yml b/.github/workflows/check_docs.yml
index 02514384..53dac618 100644
--- a/.github/workflows/check_docs.yml
+++ b/.github/workflows/check_docs.yml
@@ -10,7 +10,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Check out repo
-        uses: actions/checkout@93cb6efe18208431cddfb8368fd83d5badbf9bfd # v5.0.1
+        uses: actions/checkout@1af3b93b6815bc44a9784bd300feb67ff0d1eeb3 # v6.0.0
       - name: Set up Python
         uses: ni/python-actions/setup-python@9768589f3e50672173dad75a6fc181e4a85d33fa # v0.7.0
         id: setup-python
diff --git a/.github/workflows/check_nitypes.yml b/.github/workflows/check_nitypes.yml
index f9c1353d..cbb855af 100644
--- a/.github/workflows/check_nitypes.yml
+++ b/.github/workflows/check_nitypes.yml
@@ -16,7 +16,7 @@ jobs:
     runs-on: ${{ matrix.os }}
     steps:
       - name: Check out repo
-        uses: actions/checkout@93cb6efe18208431cddfb8368fd83d5badbf9bfd # v5.0.1
+        uses: actions/checkout@1af3b93b6815bc44a9784bd300feb67ff0d1eeb3 # v6.0.0
       - name: Set up Python
         uses: ni/python-actions/setup-python@9768589f3e50672173dad75a6fc181e4a85d33fa # v0.7.0
         with:
diff --git a/.github/workflows/publish.yml b/.github/workflows/publish.yml
index acba723a..ffe45f50 100644
--- a/.github/workflows/publish.yml
+++ b/.github/workflows/publish.yml
@@ -43,7 +43,7 @@ jobs:
     needs: [check_nitypes, check_docs]
     steps:
       - name: Check out repo
-        uses: actions/checkout@93cb6efe18208431cddfb8368fd83d5badbf9bfd # v5.0.1
+        uses: actions/checkout@1af3b93b6815bc44a9784bd300feb67ff0d1eeb3 # v6.0.0
       - name: Set up Python
         uses: ni/python-actions/setup-python@9768589f3e50672173dad75a6fc181e4a85d33fa # v0.7.0
       - name: Set up Poetry
@@ -89,7 +89,7 @@ jobs:
       pull-requests: write
     steps:
       - name: Check out repo
-        uses: actions/checkout@93cb6efe18208431cddfb8368fd83d5badbf9bfd # v5.0.1
+        uses: actions/checkout@1af3b93b6815bc44a9784bd300feb67ff0d1eeb3 # v6.0.0
       - name: Set up Python
         uses: ni/python-actions/setup-python@9768589f3e50672173dad75a6fc181e4a85d33fa # v0.7.0
       - name: Set up Poetry
diff --git a/.github/workflows/report_test_results.yml b/.github/workflows/report_test_results.yml
index af288370..40248c41 100644
--- a/.github/workflows/report_test_results.yml
+++ b/.github/workflows/report_test_results.yml
@@ -14,7 +14,7 @@ jobs:
       pull-requests: write
     steps:
       - name: Check out repo
-        uses: actions/checkout@93cb6efe18208431cddfb8368fd83d5badbf9bfd # v5.0.1
+        uses: actions/checkout@1af3b93b6815bc44a9784bd300feb67ff0d1eeb3 # v6.0.0
       - name: Download test results
         uses: actions/download-artifact@018cc2cf5baa6db3ef3c5f8a56943fffe632ef53 # v6.0.0
         with:
diff --git a/.github/workflows/run_unit_tests.yml b/.github/workflows/run_unit_tests.yml
index bcf1b5ce..7fe49aeb 100644
--- a/.github/workflows/run_unit_tests.yml
+++ b/.github/workflows/run_unit_tests.yml
@@ -17,7 +17,7 @@ jobs:
       fail-fast: false
     steps:
       - name: Check out repo
-        uses: actions/checkout@93cb6efe18208431cddfb8368fd83d5badbf9bfd # v5.0.1
+        uses: actions/checkout@1af3b93b6815bc44a9784bd300feb67ff0d1eeb3 # v6.0.0
       - name: Set up Python
         uses: ni/python-actions/setup-python@9768589f3e50672173dad75a6fc181e4a85d33fa # v0.7.0
         id: setup-python
diff --git a/.github/workflows/run_unit_tests_oldest_deps.yml b/.github/workflows/run_unit_tests_oldest_deps.yml
index 599ab032..abaa45ef 100644
--- a/.github/workflows/run_unit_tests_oldest_deps.yml
+++ b/.github/workflows/run_unit_tests_oldest_deps.yml
@@ -17,7 +17,7 @@ jobs:
       fail-fast: false
     steps:
       - name: Check out repo
-        uses: actions/checkout@93cb6efe18208431cddfb8368fd83d5badbf9bfd # v5.0.1
+        uses: actions/checkout@1af3b93b6815bc44a9784bd300feb67ff0d1eeb3 # v6.0.0
       - name: Set up Python
         uses: ni/python-actions/setup-python@9768589f3e50672173dad75a6fc181e4a85d33fa # v0.7.0
         id: setup-python