diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index de4534b..960b95e 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -12,16 +12,21 @@ concurrency:
   group: ${{ github.workflow }}-${{ github.ref }}
   cancel-in-progress: true
 
+permissions:
+  contents: read
+
 jobs:
   pre-commit:
     runs-on: ubuntu-latest
     steps:
-    - uses: actions/checkout@v5
-    - uses: actions/setup-python@v6
+    - uses: actions/checkout@d23441a48e516b6c34aea4fa41551a30e30af803 # v6.1.0
+      with:
+        persist-credentials: false
+    - uses: actions/setup-python@ece7cb06caefa5fff74198d8649806c4678c61a1 # v6.3.0
       with:
         python-version: 3.x
-    - uses: pre-commit/action@v3.0.1
-    - uses: pre-commit-ci/lite-action@v1.1.0
+    - uses: pre-commit/action@2c7b3805fd2a0fd8c1884dcaebf91fc102a13ecd # v3.0.1
+    - uses: pre-commit-ci/lite-action@062bca0919bc9d6e66755cc05074b70c77e111fc # v1.2.0
       if: always()
 
   unittest:
@@ -37,11 +42,9 @@ jobs:
           - py314
     steps:
       - name: Checkout code
-        uses: actions/checkout@v6
-      - uses: prefix-dev/setup-pixi@v0.9.3
+        uses: actions/checkout@d23441a48e516b6c34aea4fa41551a30e30af803 # v6.1.0
         with:
-          run-install: false
-          post-cleanup: false
+          persist-credentials: false
       - name: Apply workarounds
         run: |
           # Workaround for https://github.com/prefix-dev/pixi/issues/3762
@@ -49,8 +52,9 @@ jobs:
           rm pyproject.toml.bak
           # Show any changes
           git diff
-      - uses: prefix-dev/setup-pixi@v0.9.3
+      - uses: prefix-dev/setup-pixi@ad1da6449d9e506fd127fd67ab2d054a769f6a94 # v0.11.2
         with:
+          pixi-version: v0.82.0
           cache: false
           environments: ${{ matrix.python-version }}
       - name: Run pytest
diff --git a/.github/workflows/deployment.yml b/.github/workflows/deployment.yml
index 012cef6..a94816b 100644
--- a/.github/workflows/deployment.yml
+++ b/.github/workflows/deployment.yml
@@ -2,22 +2,20 @@ name: Publish Python 🐍 distribution 📦 to PyPI
 
 on: push
 
+permissions:
+  contents: read
+
 jobs:
   build:
     name: Build distribution 📦
     runs-on: ubuntu-latest
-    environment:
-      name: pypi
-      url: https://pypi.org/p/intercede
-    permissions:
-      id-token: write  # IMPORTANT: mandatory for trusted publishing
     if: startsWith(github.ref, 'refs/tags/')  # only publish to PyPI on tag pushes
     steps:
-    - uses: actions/checkout@v6
+    - uses: actions/checkout@d23441a48e516b6c34aea4fa41551a30e30af803 # v6.1.0
       with:
         persist-credentials: false
     - name: Set up Python
-      uses: actions/setup-python@v6
+      uses: actions/setup-python@ece7cb06caefa5fff74198d8649806c4678c61a1 # v6.3.0
       with:
         python-version: "3.14"
     - name: Installing dependencies
@@ -34,5 +32,26 @@ jobs:
         python -m readme_renderer README.md -o /tmp/README.html
     - name: Build a binary wheel and a source tarball
       run: python3 -m build
+    - name: Store the distribution packages
+      uses: actions/upload-artifact@cf430e030ddbb5b0abf93d22962f4752f3646cd9 # v7.0.2
+      with:
+        name: python-package-distributions
+        path: dist/
+
+  publish:
+    name: Publish distribution 📦 to PyPI
+    needs: build
+    runs-on: ubuntu-latest
+    environment:
+      name: pypi
+      url: https://pypi.org/p/intercede
+    permissions:
+      id-token: write  # IMPORTANT: mandatory for trusted publishing
+    steps:
+    - name: Download the distribution packages
+      uses: actions/download-artifact@9000827ccba6bdab643e8b6fd33ac0654aef8333 # v8.0.2
+      with:
+        name: python-package-distributions
+        path: dist/
     - name: Publish distribution 📦 to PyPI
-      uses: pypa/gh-action-pypi-publish@release/v1
+      uses: pypa/gh-action-pypi-publish@dc37677b2e1c63e2034f94d8a5b11f265b73ba33 # v1.14.2
diff --git a/.github/workflows/release-please.yml b/.github/workflows/release-please.yml
index 2fba604..af888b4 100644
--- a/.github/workflows/release-please.yml
+++ b/.github/workflows/release-please.yml
@@ -14,7 +14,7 @@ jobs:
   release-please:
     runs-on: ubuntu-latest
     steps:
-      - uses: googleapis/release-please-action@v4
+      - uses: googleapis/release-please-action@5c625bfb5d1ff62eadeeb3772007f7f66fdcf071 # v4.4.1
         with:
           token: ${{ secrets.MY_RELEASE_PLEASE_TOKEN }}
           release-type: simple
diff --git a/renovate.json b/renovate.json
index 437d827..0877e17 100644
--- a/renovate.json
+++ b/renovate.json
@@ -1,7 +1,8 @@
 {
   "$schema": "https://docs.renovatebot.com/renovate-schema.json",
   "extends": [
-    "config:recommended"
+    "config:recommended",
+    "helpers:pinGitHubActionDigests"
   ],
   "minimumReleaseAge": "7 days",
   "enabledManagers": [