diff --git a/.github/workflows/check_changelogs.yml b/.github/workflows/check_changelogs.yml
index d897c82775..10a21d21c3 100644
--- a/.github/workflows/check_changelogs.yml
+++ b/.github/workflows/check_changelogs.yml
@@ -17,12 +17,12 @@ jobs:
     runs-on: ubuntu-latest
 
     steps:
-      - uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2
+      - uses: actions/checkout@df4cb1c069e1874edd31b4311f1884172cec0e10 # v6.0.3
         with:
           persist-credentials: false
 
       - name: Install uv
-        uses: astral-sh/setup-uv@08807647e7069bb48b6ef5acd8ec9567f424441b # v8.1.0
+        uses: astral-sh/setup-uv@fac544c07dec837d0ccb6301d7b5580bf5edae39 # v8.2.0
 
       - name: Check zarr-python changelog entries
         run: uv run --no-sync python ci/check_changelog_entries.py
diff --git a/.github/workflows/codspeed.yml b/.github/workflows/codspeed.yml
index c9d2060a66..4e20b5efa7 100644
--- a/.github/workflows/codspeed.yml
+++ b/.github/workflows/codspeed.yml
@@ -23,7 +23,7 @@ jobs:
       github.event_name == 'workflow_dispatch' ||
       (github.event_name == 'pull_request' && contains(github.event.pull_request.labels.*.name, 'benchmark'))
     steps:
-    - uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2
+    - uses: actions/checkout@df4cb1c069e1874edd31b4311f1884172cec0e10 # v6.0.3
       with:
         fetch-depth: 0
         persist-credentials: false
@@ -32,7 +32,7 @@ jobs:
       with:
         version: '1.16.5'
     - name: Run the benchmarks
-      uses: CodSpeedHQ/action@3194d9a39c4d46684cb44bf7207fc56626aad8fd # v4.15.1
+      uses: CodSpeedHQ/action@9d332c4d90b43981c3e55ae8e38e68709996240f # v4.17.0
       with:
           mode: walltime
           run: hatch run test.py3.12-minimal:pytest tests/benchmarks --codspeed
diff --git a/.github/workflows/docs.yml b/.github/workflows/docs.yml
index fb5487ada4..ab745beec1 100644
--- a/.github/workflows/docs.yml
+++ b/.github/workflows/docs.yml
@@ -19,10 +19,10 @@ jobs:
     name: Check docs
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2
+      - uses: actions/checkout@df4cb1c069e1874edd31b4311f1884172cec0e10 # v6.0.3
         with:
           persist-credentials: false
-      - uses: astral-sh/setup-uv@08807647e7069bb48b6ef5acd8ec9567f424441b # v8.1.0
+      - uses: astral-sh/setup-uv@fac544c07dec837d0ccb6301d7b5580bf5edae39 # v8.2.0
       - run: uv sync --group docs
       # --strict turns warnings into errors, so a docs code block that fails to execute
       # at build time (e.g. a non-exec python fence disrupting a later exec="true" block)
diff --git a/.github/workflows/downstream.yml b/.github/workflows/downstream.yml
index ec792163df..08bfcf2139 100644
--- a/.github/workflows/downstream.yml
+++ b/.github/workflows/downstream.yml
@@ -21,13 +21,13 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Check out zarr-python
-        uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2
+        uses: actions/checkout@df4cb1c069e1874edd31b4311f1884172cec0e10 # v6.0.3
         with:
           fetch-depth: 0
           persist-credentials: false
 
       - name: Check out xarray
-        uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2
+        uses: actions/checkout@df4cb1c069e1874edd31b4311f1884172cec0e10 # v6.0.3
         with:
           repository: pydata/xarray
           path: xarray
@@ -45,7 +45,7 @@ jobs:
           python-version: '3.13'
 
       - name: Install uv
-        uses: astral-sh/setup-uv@08807647e7069bb48b6ef5acd8ec9567f424441b # v8.1.0
+        uses: astral-sh/setup-uv@fac544c07dec837d0ccb6301d7b5580bf5edae39 # v8.2.0
 
       - name: Install xarray and test dependencies
         working-directory: xarray
@@ -83,13 +83,13 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Check out zarr-python
-        uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2
+        uses: actions/checkout@df4cb1c069e1874edd31b4311f1884172cec0e10 # v6.0.3
         with:
           fetch-depth: 0
           persist-credentials: false
 
       - name: Check out numcodecs
-        uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2
+        uses: actions/checkout@df4cb1c069e1874edd31b4311f1884172cec0e10 # v6.0.3
         with:
           repository: zarr-developers/numcodecs
           fetch-depth: 0
@@ -102,7 +102,7 @@ jobs:
           python-version: '3.13'
 
       - name: Install uv
-        uses: astral-sh/setup-uv@08807647e7069bb48b6ef5acd8ec9567f424441b # v8.1.0
+        uses: astral-sh/setup-uv@fac544c07dec837d0ccb6301d7b5580bf5edae39 # v8.2.0
 
       - name: Install numcodecs with test-zarr-main group
         working-directory: numcodecs
diff --git a/.github/workflows/gpu_test.yml b/.github/workflows/gpu_test.yml
index c03318d649..27c95762d6 100644
--- a/.github/workflows/gpu_test.yml
+++ b/.github/workflows/gpu_test.yml
@@ -34,7 +34,7 @@ jobs:
         python-version: ['3.12']
 
     steps:
-    - uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2
+    - uses: actions/checkout@df4cb1c069e1874edd31b4311f1884172cec0e10 # v6.0.3
       with:
         fetch-depth: 0  # grab all branches and tags
         persist-credentials: false
@@ -62,7 +62,7 @@ jobs:
         python-version: ${{ matrix.python-version }}
         cache: 'pip'
     - name: Install uv
-      uses: astral-sh/setup-uv@08807647e7069bb48b6ef5acd8ec9567f424441b # v8.1.0
+      uses: astral-sh/setup-uv@fac544c07dec837d0ccb6301d7b5580bf5edae39 # v8.2.0
     - name: Install Hatch
       uses: pypa/hatch@257e27e51a6a5616ed08a39a408a21c35c9931bc
       with:
diff --git a/.github/workflows/hypothesis.yaml b/.github/workflows/hypothesis.yaml
index bc711c8490..92907f45e1 100644
--- a/.github/workflows/hypothesis.yaml
+++ b/.github/workflows/hypothesis.yaml
@@ -39,7 +39,7 @@ jobs:
         dependency-set: ["optional"]
 
     steps:
-    - uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2
+    - uses: actions/checkout@df4cb1c069e1874edd31b4311f1884172cec0e10 # v6.0.3
       with:
         persist-credentials: false
     - name: Set HYPOTHESIS_PROFILE based on trigger
@@ -57,7 +57,7 @@ jobs:
         python-version: ${{ matrix.python-version }}
         cache: 'pip'
     - name: Install uv
-      uses: astral-sh/setup-uv@08807647e7069bb48b6ef5acd8ec9567f424441b # v8.1.0
+      uses: astral-sh/setup-uv@fac544c07dec837d0ccb6301d7b5580bf5edae39 # v8.2.0
     - name: Install Hatch
       uses: pypa/hatch@257e27e51a6a5616ed08a39a408a21c35c9931bc
       with:
diff --git a/.github/workflows/lint.yml b/.github/workflows/lint.yml
index fec211b4dd..32e521377d 100644
--- a/.github/workflows/lint.yml
+++ b/.github/workflows/lint.yml
@@ -19,7 +19,7 @@ jobs:
     name: Lint
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2
+      - uses: actions/checkout@df4cb1c069e1874edd31b4311f1884172cec0e10 # v6.0.3
         with:
           persist-credentials: false
       - name: Set up Python
@@ -27,7 +27,7 @@ jobs:
         with:
           python-version: "3.12"
       - name: Install uv
-        uses: astral-sh/setup-uv@08807647e7069bb48b6ef5acd8ec9567f424441b # v8.1.0
+        uses: astral-sh/setup-uv@fac544c07dec837d0ccb6301d7b5580bf5edae39 # v8.2.0
         with:
           enable-cache: true
       - uses: j178/prek-action@bdca6f102f98e2b4c7029491a53dfd366469e33d # v2.0.4
diff --git a/.github/workflows/nightly_wheels.yml b/.github/workflows/nightly_wheels.yml
index 1f48e9e1b8..6ef6c28994 100644
--- a/.github/workflows/nightly_wheels.yml
+++ b/.github/workflows/nightly_wheels.yml
@@ -22,7 +22,7 @@ jobs:
     runs-on: ubuntu-latest
 
     steps:
-      - uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2
+      - uses: actions/checkout@df4cb1c069e1874edd31b4311f1884172cec0e10 # v6.0.3
         with:
           submodules: true
           fetch-depth: 0
diff --git a/.github/workflows/prepare_release.yml b/.github/workflows/prepare_release.yml
index 4dbedf5b9e..57ae10ff0d 100644
--- a/.github/workflows/prepare_release.yml
+++ b/.github/workflows/prepare_release.yml
@@ -36,7 +36,7 @@ jobs:
           VERSION: ${{ inputs.version }}
           TARGET_BRANCH: ${{ inputs.target_branch }}
 
-      - uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2
+      - uses: actions/checkout@df4cb1c069e1874edd31b4311f1884172cec0e10 # v6.0.3
         with:
           ref: ${{ inputs.target_branch }}
           fetch-depth: 0
diff --git a/.github/workflows/releases.yml b/.github/workflows/releases.yml
index a6c7202c5b..43436de947 100644
--- a/.github/workflows/releases.yml
+++ b/.github/workflows/releases.yml
@@ -26,7 +26,7 @@ jobs:
       fail-fast: false
 
     steps:
-      - uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2
+      - uses: actions/checkout@df4cb1c069e1874edd31b4311f1884172cec0e10 # v6.0.3
         with:
           submodules: true
           fetch-depth: 0
diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
index 142290d109..9b5f98a2d2 100644
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@@ -56,7 +56,7 @@ jobs:
     runs-on: ${{ matrix.os }}
 
     steps:
-    - uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2
+    - uses: actions/checkout@df4cb1c069e1874edd31b4311f1884172cec0e10 # v6.0.3
       with:
         fetch-depth: 0  # grab all branches and tags
         persist-credentials: false
@@ -66,7 +66,7 @@ jobs:
         python-version: ${{ matrix.python-version }}
         cache: 'pip'
     - name: Install uv
-      uses: astral-sh/setup-uv@08807647e7069bb48b6ef5acd8ec9567f424441b # v8.1.0
+      uses: astral-sh/setup-uv@fac544c07dec837d0ccb6301d7b5580bf5edae39 # v8.2.0
     - name: Install Hatch
       run: python -m pip install hatch==1.16.5
     - name: Set Up Hatch Env
@@ -105,7 +105,7 @@ jobs:
           - python-version: "3.12"
             dependency-set: upstream
     steps:
-    - uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2
+    - uses: actions/checkout@df4cb1c069e1874edd31b4311f1884172cec0e10 # v6.0.3
       with:
         fetch-depth: 0
         persist-credentials: false
@@ -115,7 +115,7 @@ jobs:
         python-version: ${{ matrix.python-version }}
         cache: 'pip'
     - name: Install uv
-      uses: astral-sh/setup-uv@08807647e7069bb48b6ef5acd8ec9567f424441b # v8.1.0
+      uses: astral-sh/setup-uv@fac544c07dec837d0ccb6301d7b5580bf5edae39 # v8.2.0
     - name: Install Hatch
       run: python -m pip install hatch==1.16.5
     - name: Set Up Hatch Env
@@ -140,7 +140,7 @@ jobs:
     name: doctests
     runs-on: ubuntu-latest
     steps:
-    - uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2
+    - uses: actions/checkout@df4cb1c069e1874edd31b4311f1884172cec0e10 # v6.0.3
       with:
         fetch-depth: 0 # required for hatch version discovery, which is needed for numcodecs.zarr3
         persist-credentials: false
@@ -150,7 +150,7 @@ jobs:
         python-version: '3.13'
         cache: 'pip'
     - name: Install uv
-      uses: astral-sh/setup-uv@08807647e7069bb48b6ef5acd8ec9567f424441b # v8.1.0
+      uses: astral-sh/setup-uv@fac544c07dec837d0ccb6301d7b5580bf5edae39 # v8.2.0
     - name: Install Hatch
       run: python -m pip install hatch==1.16.5
     - name: Set Up Hatch Env
@@ -164,7 +164,7 @@ jobs:
     name: Benchmark smoke test
     runs-on: ubuntu-latest
     steps:
-    - uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2
+    - uses: actions/checkout@df4cb1c069e1874edd31b4311f1884172cec0e10 # v6.0.3
       with:
         fetch-depth: 0
         persist-credentials: false
@@ -174,7 +174,7 @@ jobs:
         python-version: '3.13'
         cache: 'pip'
     - name: Install uv
-      uses: astral-sh/setup-uv@08807647e7069bb48b6ef5acd8ec9567f424441b # v8.1.0
+      uses: astral-sh/setup-uv@fac544c07dec837d0ccb6301d7b5580bf5edae39 # v8.2.0
     - name: Install Hatch
       run: python -m pip install hatch==1.16.5
     - name: Run Benchmarks
diff --git a/.github/workflows/zarr-metadata-release.yml b/.github/workflows/zarr-metadata-release.yml
index 9639fcfdd3..cd4e408906 100644
--- a/.github/workflows/zarr-metadata-release.yml
+++ b/.github/workflows/zarr-metadata-release.yml
@@ -22,7 +22,7 @@ jobs:
         shell: bash
         working-directory: packages/zarr-metadata
     steps:
-      - uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2
+      - uses: actions/checkout@df4cb1c069e1874edd31b4311f1884172cec0e10 # v6.0.3
         with:
           persist-credentials: false
           fetch-depth: 0          # hatch-vcs needs full history + tags
@@ -51,7 +51,7 @@ jobs:
           path: dist
 
       - name: Install uv
-        uses: astral-sh/setup-uv@08807647e7069bb48b6ef5acd8ec9567f424441b # v8.1.0
+        uses: astral-sh/setup-uv@fac544c07dec837d0ccb6301d7b5580bf5edae39 # v8.2.0
         with:
           enable-cache: false
 
diff --git a/.github/workflows/zarr-metadata.yml b/.github/workflows/zarr-metadata.yml
index 1ff0786118..3081abf094 100644
--- a/.github/workflows/zarr-metadata.yml
+++ b/.github/workflows/zarr-metadata.yml
@@ -32,11 +32,11 @@ jobs:
       matrix:
         python-version: ['3.11', '3.12', '3.13', '3.14']
     steps:
-      - uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2
+      - uses: actions/checkout@df4cb1c069e1874edd31b4311f1884172cec0e10 # v6.0.3
         with:
           persist-credentials: false
       - name: Install uv
-        uses: astral-sh/setup-uv@08807647e7069bb48b6ef5acd8ec9567f424441b # v8.1.0
+        uses: astral-sh/setup-uv@fac544c07dec837d0ccb6301d7b5580bf5edae39 # v8.2.0
         with:
           enable-cache: true
       - name: Set up Python ${{ matrix.python-version }}
@@ -54,11 +54,11 @@ jobs:
         shell: bash
         working-directory: packages/zarr-metadata
     steps:
-      - uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2
+      - uses: actions/checkout@df4cb1c069e1874edd31b4311f1884172cec0e10 # v6.0.3
         with:
           persist-credentials: false
       - name: Install uv
-        uses: astral-sh/setup-uv@08807647e7069bb48b6ef5acd8ec9567f424441b # v8.1.0
+        uses: astral-sh/setup-uv@fac544c07dec837d0ccb6301d7b5580bf5edae39 # v8.2.0
       - name: Run ruff
         run: uvx ruff check .
 
@@ -70,11 +70,11 @@ jobs:
         shell: bash
         working-directory: packages/zarr-metadata
     steps:
-      - uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2
+      - uses: actions/checkout@df4cb1c069e1874edd31b4311f1884172cec0e10 # v6.0.3
         with:
           persist-credentials: false
       - name: Install uv
-        uses: astral-sh/setup-uv@08807647e7069bb48b6ef5acd8ec9567f424441b # v8.1.0
+        uses: astral-sh/setup-uv@fac544c07dec837d0ccb6301d7b5580bf5edae39 # v8.2.0
         with:
           enable-cache: true
       - name: Set up Python
diff --git a/.github/workflows/zizmor.yml b/.github/workflows/zizmor.yml
index 7ac4fe5d0e..869f76dcc1 100644
--- a/.github/workflows/zizmor.yml
+++ b/.github/workflows/zizmor.yml
@@ -27,7 +27,7 @@ jobs:
       security-events: write # Required by zizmor-action to upload SARIF files
     steps:
       - name: Checkout repository
-        uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2
+        uses: actions/checkout@df4cb1c069e1874edd31b4311f1884172cec0e10 # v6.0.3
         with:
           persist-credentials: false