diff --git a/.github/workflows/codspeed.yml b/.github/workflows/codspeed.yml
index a77e99bc28..1d8e847ec5 100644
--- a/.github/workflows/codspeed.yml
+++ b/.github/workflows/codspeed.yml
@@ -32,7 +32,7 @@ jobs:
       with:
         version: '1.16.5'
     - name: Run the benchmarks
-      uses: CodSpeedHQ/action@63f3e98b61959fe67f146a3ff022e4136fe9bb9c # v4.17.6
+      uses: CodSpeedHQ/action@a4a36bb07c0638b0b4ca52bf1f3dad1b4289e52f # v4.18.1
       with:
           mode: walltime
           run: hatch run test.py3.12-minimal:pytest tests/benchmarks --codspeed
diff --git a/.github/workflows/downstream.yml b/.github/workflows/downstream.yml
index c592fb3cd6..d8aa2907be 100644
--- a/.github/workflows/downstream.yml
+++ b/.github/workflows/downstream.yml
@@ -40,7 +40,7 @@ jobs:
       # `meson-python: error: Unknown option "pixi-conda-environment"`, breaking
       # the job before any test runs. Tests that need a backend we don't install
       # are skipped via xarray's `requires_*` markers, not failed.
-      - uses: actions/setup-python@a309ff8b426b58ec0e2a45f0f869d46889d02405 # v6.2.0
+      - uses: actions/setup-python@ece7cb06caefa5fff74198d8649806c4678c61a1 # v6.3.0
         with:
           python-version: '3.13'
 
@@ -97,7 +97,7 @@ jobs:
           submodules: recursive
           persist-credentials: false
 
-      - uses: actions/setup-python@a309ff8b426b58ec0e2a45f0f869d46889d02405 # v6.2.0
+      - uses: actions/setup-python@ece7cb06caefa5fff74198d8649806c4678c61a1 # v6.3.0
         with:
           python-version: '3.13'
 
diff --git a/.github/workflows/gpu_test.yml b/.github/workflows/gpu_test.yml
index 60c871cb15..f2bf4907fa 100644
--- a/.github/workflows/gpu_test.yml
+++ b/.github/workflows/gpu_test.yml
@@ -57,7 +57,7 @@ jobs:
         echo $LD_LIBRARY_PATH
         nvcc -V
     - name: Set up Python
-      uses: actions/setup-python@a309ff8b426b58ec0e2a45f0f869d46889d02405 # v6.2.0
+      uses: actions/setup-python@ece7cb06caefa5fff74198d8649806c4678c61a1 # v6.3.0
       with:
         python-version: ${{ matrix.python-version }}
         cache: 'pip'
diff --git a/.github/workflows/hypothesis.yaml b/.github/workflows/hypothesis.yaml
index b1262cee06..950714e098 100644
--- a/.github/workflows/hypothesis.yaml
+++ b/.github/workflows/hypothesis.yaml
@@ -52,7 +52,7 @@ jobs:
           echo "HYPOTHESIS_PROFILE=ci" >> $GITHUB_ENV
         fi
     - name: Set up Python
-      uses: actions/setup-python@a309ff8b426b58ec0e2a45f0f869d46889d02405 # v6.2.0
+      uses: actions/setup-python@ece7cb06caefa5fff74198d8649806c4678c61a1 # v6.3.0
       with:
         python-version: ${{ matrix.python-version }}
         cache: 'pip'
@@ -71,7 +71,7 @@ jobs:
     # https://github.com/actions/cache/blob/main/tips-and-workarounds.md#update-a-cache
     - name: Restore cached hypothesis directory
       id: restore-hypothesis-cache
-      uses: actions/cache/restore@27d5ce7f107fe9357f9df03efb73ab90386fccae # v5.0.5
+      uses: actions/cache/restore@55cc8345863c7cc4c66a329aec7e433d2d1c52a9 # v6.1.0
       with:
         path: .hypothesis/
         key: cache-hypothesis-${{ runner.os }}-${{ github.run_id }}
@@ -91,7 +91,7 @@ jobs:
     - name: Save cached hypothesis directory
       id: save-hypothesis-cache
       if: always() && steps.status.outcome != 'skipped'
-      uses: actions/cache/save@27d5ce7f107fe9357f9df03efb73ab90386fccae # v5.0.5
+      uses: actions/cache/save@55cc8345863c7cc4c66a329aec7e433d2d1c52a9 # v6.1.0
       with:
         path: .hypothesis/
         key: cache-hypothesis-${{ runner.os }}-${{ github.run_id }}
diff --git a/.github/workflows/lint.yml b/.github/workflows/lint.yml
index d60c9f59b4..287c76e7b6 100644
--- a/.github/workflows/lint.yml
+++ b/.github/workflows/lint.yml
@@ -23,7 +23,7 @@ jobs:
         with:
           persist-credentials: false
       - name: Set up Python
-        uses: actions/setup-python@a309ff8b426b58ec0e2a45f0f869d46889d02405 # v6.2.0
+        uses: actions/setup-python@ece7cb06caefa5fff74198d8649806c4678c61a1 # v6.3.0
         with:
           python-version: "3.12"
       - name: Install uv
diff --git a/.github/workflows/nightly_wheels.yml b/.github/workflows/nightly_wheels.yml
index 85f07cc8a1..0a0cafd425 100644
--- a/.github/workflows/nightly_wheels.yml
+++ b/.github/workflows/nightly_wheels.yml
@@ -28,7 +28,7 @@ jobs:
           fetch-depth: 0
           persist-credentials: false
 
-      - uses: actions/setup-python@a309ff8b426b58ec0e2a45f0f869d46889d02405 # v6.2.0
+      - uses: actions/setup-python@ece7cb06caefa5fff74198d8649806c4678c61a1 # v6.3.0
         name: Install Python
         with:
           python-version: '3.14'
diff --git a/.github/workflows/releases.yml b/.github/workflows/releases.yml
index c930eea689..6b5895a413 100644
--- a/.github/workflows/releases.yml
+++ b/.github/workflows/releases.yml
@@ -32,7 +32,7 @@ jobs:
           fetch-depth: 0
           persist-credentials: false
 
-      - uses: actions/setup-python@a309ff8b426b58ec0e2a45f0f869d46889d02405 # v6.2.0
+      - uses: actions/setup-python@ece7cb06caefa5fff74198d8649806c4678c61a1 # v6.3.0
         name: Install Python
         with:
           python-version: '3.12'
diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
index a75974f6c9..7bc43512b5 100644
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@@ -61,7 +61,7 @@ jobs:
         fetch-depth: 0  # grab all branches and tags
         persist-credentials: false
     - name: Set up Python
-      uses: actions/setup-python@a309ff8b426b58ec0e2a45f0f869d46889d02405 # v6.2.0
+      uses: actions/setup-python@ece7cb06caefa5fff74198d8649806c4678c61a1 # v6.3.0
       with:
         python-version: ${{ matrix.python-version }}
         cache: 'pip'
@@ -110,7 +110,7 @@ jobs:
         fetch-depth: 0
         persist-credentials: false
     - name: Set up Python
-      uses: actions/setup-python@a309ff8b426b58ec0e2a45f0f869d46889d02405 # v6.2.0
+      uses: actions/setup-python@ece7cb06caefa5fff74198d8649806c4678c61a1 # v6.3.0
       with:
         python-version: ${{ matrix.python-version }}
         cache: 'pip'
@@ -145,7 +145,7 @@ jobs:
         fetch-depth: 0 # required for hatch version discovery, which is needed for numcodecs.zarr3
         persist-credentials: false
     - name: Set up Python
-      uses: actions/setup-python@a309ff8b426b58ec0e2a45f0f869d46889d02405 # v6.2.0
+      uses: actions/setup-python@ece7cb06caefa5fff74198d8649806c4678c61a1 # v6.3.0
       with:
         python-version: '3.13'
         cache: 'pip'
@@ -169,7 +169,7 @@ jobs:
         fetch-depth: 0
         persist-credentials: false
     - name: Set up Python
-      uses: actions/setup-python@a309ff8b426b58ec0e2a45f0f869d46889d02405 # v6.2.0
+      uses: actions/setup-python@ece7cb06caefa5fff74198d8649806c4678c61a1 # v6.3.0
       with:
         python-version: '3.13'
         cache: 'pip'
diff --git a/.github/workflows/zizmor.yml b/.github/workflows/zizmor.yml
index 2b08f619f0..6250426bae 100644
--- a/.github/workflows/zizmor.yml
+++ b/.github/workflows/zizmor.yml
@@ -32,4 +32,4 @@ jobs:
           persist-credentials: false
 
       - name: Run zizmor
-        uses: zizmorcore/zizmor-action@5f14fd08f7cf1cb1609c1e344975f152c7ee938d # v0.5.6
+        uses: zizmorcore/zizmor-action@192e21d79ab29983730a13d1382995c2307fbcaa # v0.5.7