diff --git a/.github/workflows/check_docs.yml b/.github/workflows/check_docs.yml
index 5585f81..4c3c2cc 100644
--- a/.github/workflows/check_docs.yml
+++ b/.github/workflows/check_docs.yml
@@ -12,7 +12,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Check out repo
-        uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2
+        uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7.0.1
         with:
           persist-credentials: false
       - name: Set up Python
@@ -23,7 +23,7 @@ jobs:
       - name: Check for lock changes
         run: poetry check --lock
       - name: Cache virtualenv (with docs)
-        uses: actions/cache@27d5ce7f107fe9357f9df03efb73ab90386fccae # v5.0.5
+        uses: actions/cache@55cc8345863c7cc4c66a329aec7e433d2d1c52a9 # v6.1.0
         with:
           path: .venv
           key: hightime-with-docs-${{ runner.os }}-py${{ steps.setup-python.outputs.python-version }}-${{ hashFiles('poetry.lock') }}
diff --git a/.github/workflows/check_hightime.yml b/.github/workflows/check_hightime.yml
index dcf7b9b..04e5f0d 100644
--- a/.github/workflows/check_hightime.yml
+++ b/.github/workflows/check_hightime.yml
@@ -12,7 +12,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Check out repo
-        uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2
+        uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7.0.1
         with:
           persist-credentials: false
       - name: Set up Python
@@ -23,7 +23,7 @@ jobs:
       - name: Check for lock changes
         run: poetry check --lock
       - name: Cache virtualenv
-        uses: actions/cache@27d5ce7f107fe9357f9df03efb73ab90386fccae # v5.0.5
+        uses: actions/cache@55cc8345863c7cc4c66a329aec7e433d2d1c52a9 # v6.1.0
         with:
           path: .venv
           key: hightime-${{ runner.os }}-py${{ steps.setup-python.outputs.python-version }}-${{ hashFiles('poetry.lock') }}
diff --git a/.github/workflows/check_workflows.yml b/.github/workflows/check_workflows.yml
index bbf458d..8336117 100644
--- a/.github/workflows/check_workflows.yml
+++ b/.github/workflows/check_workflows.yml
@@ -14,7 +14,7 @@ jobs:
       security-events: write
     steps:
       - name: Check out repo
-        uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2
+        uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7.0.1
         with:
           persist-credentials: false
       - name: Run zizmor
diff --git a/.github/workflows/publish.yml b/.github/workflows/publish.yml
index 0c65ddc..4a287a7 100644
--- a/.github/workflows/publish.yml
+++ b/.github/workflows/publish.yml
@@ -45,7 +45,7 @@ jobs:
     needs: [check_hightime, check_docs]
     steps:
       - name: Check out repo
-        uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2
+        uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7.0.1
         with:
           persist-credentials: false
       - name: Set up Python
@@ -95,7 +95,7 @@ jobs:
       pull-requests: write
     steps:
       - name: Check out repo
-        uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2
+        uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7.0.1
         with:
           persist-credentials: false
       - name: Set up Python
diff --git a/.github/workflows/report_test_results.yml b/.github/workflows/report_test_results.yml
index 57678ee..cc7c3c7 100644
--- a/.github/workflows/report_test_results.yml
+++ b/.github/workflows/report_test_results.yml
@@ -16,7 +16,7 @@ jobs:
       pull-requests: write
     steps:
       - name: Check out repo
-        uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2
+        uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7.0.1
         with:
           persist-credentials: false
       - name: Download test results
diff --git a/.github/workflows/run_unit_tests.yml b/.github/workflows/run_unit_tests.yml
index c11b1dd..7f499e4 100644
--- a/.github/workflows/run_unit_tests.yml
+++ b/.github/workflows/run_unit_tests.yml
@@ -19,7 +19,7 @@ jobs:
       fail-fast: false
     steps:
       - name: Check out repo
-        uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2
+        uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7.0.1
         with:
           persist-credentials: false
       - name: Set up Python
@@ -30,7 +30,7 @@ jobs:
       - name: Set up Poetry
         uses: ni/python-actions/setup-poetry@a2554c7e5680982d3355677b2290e48b60678744 # v0.8.0
       - name: Cache virtualenv
-        uses: actions/cache@27d5ce7f107fe9357f9df03efb73ab90386fccae # v5.0.5
+        uses: actions/cache@55cc8345863c7cc4c66a329aec7e433d2d1c52a9 # v6.1.0
         with:
           path: .venv
           key: hightime-${{ runner.os }}-py${{ steps.setup-python.outputs.python-version }}-${{ hashFiles('poetry.lock') }}