diff --git a/.github/dependabot.yml b/.github/dependabot.yml
new file mode 100644
index 00000000..c220c05e
--- /dev/null
+++ b/.github/dependabot.yml
@@ -0,0 +1,16 @@
+version: 2
+updates:
+  - package-ecosystem: github-actions
+    directory: /
+    schedule:
+      interval: daily
+
+  - package-ecosystem: docker
+    directory: /
+    schedule:
+      interval: daily
+
+  - package-ecosystem: npm
+    directory: /
+    schedule:
+      interval: daily
diff --git a/.github/workflows/aiohttp.yml b/.github/workflows/aiohttp.yml
index 8ae8eb37..399e14bf 100644
--- a/.github/workflows/aiohttp.yml
+++ b/.github/workflows/aiohttp.yml
@@ -9,6 +9,9 @@ on:
     branches:
       - 'main'
 
+permissions:
+  contents: read
+
 jobs:
   test:
     permissions:
@@ -18,15 +21,15 @@ jobs:
     runs-on: ubuntu-latest
     steps:
     - name: Checkout aiohttp
-      uses: actions/checkout@v4
+      uses: actions/checkout@8ade135a41bc03ea155e62e844d188df1ea18608 # v4.1.0
       with:
         repository: aio-libs/aiohttp
     - name: Checkout llhttp
-      uses: actions/checkout@v4
+      uses: actions/checkout@8ade135a41bc03ea155e62e844d188df1ea18608 # v4.1.0
       with:
         path: vendor/llhttp
     - name: Restore node_modules cache
-      uses: actions/cache@v3
+      uses: actions/cache@704facf57e6136b1bc63b828d79edcd491f0ee84 # v3.3.2
       with:
         path: vendor/llhttp/.npm
         key: ubuntu-latest-node-${{ hashFiles('vendor/llhttp/**/package-lock.json') }}
@@ -38,7 +41,7 @@ jobs:
       run: make
       working-directory: vendor/llhttp
     - name: Setup Python
-      uses: actions/setup-python@v4
+      uses: actions/setup-python@65d7f2d534ac1bc67fcd62888c5f4f3d2cb2b236 # v4.7.1
       with:
         python-version: 3.x
         cache: 'pip'
diff --git a/.github/workflows/ci.yaml b/.github/workflows/ci.yaml
index d1b3a65a..91b3c10e 100644
--- a/.github/workflows/ci.yaml
+++ b/.github/workflows/ci.yaml
@@ -5,6 +5,9 @@ on: [push, pull_request]
 env:
   CI: true
 
+permissions:
+  contents: read
+
 jobs:
   build:
     name: Build libllhttp.a
@@ -27,13 +30,13 @@ jobs:
           echo $env:PATH >> $env:GITHUB_PATH
 
       - name: Fetch code
-        uses: actions/checkout@v3
+        uses: actions/checkout@f43a0e5ff2bd294095638e18286ca9a3d1956744 # v3.6.0
         with:
           fetch-depth: 1
 
       # Skip macOS & Windows, cache there is slower
       - name: Restore node_modules cache for Linux
-        uses: actions/cache@v3
+        uses: actions/cache@704facf57e6136b1bc63b828d79edcd491f0ee84 # v3.3.2
         if: runner.os == 'Linux'
         with:
           path: ~/.npm
@@ -70,13 +73,13 @@ jobs:
           echo $env:PATH >> $env:GITHUB_PATH
 
       - name: Fetch code
-        uses: actions/checkout@v3
+        uses: actions/checkout@f43a0e5ff2bd294095638e18286ca9a3d1956744 # v3.6.0
         with:
           fetch-depth: 1
 
       # Skip macOS & Windows, cache there is slower
       - name: Restore node_modules cache for Linux
-        uses: actions/cache@v3
+        uses: actions/cache@704facf57e6136b1bc63b828d79edcd491f0ee84 # v3.3.2
         if: runner.os == 'Linux'
         with:
           path: ~/.npm
@@ -98,12 +101,12 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Fetch code
-        uses: actions/checkout@v3
+        uses: actions/checkout@f43a0e5ff2bd294095638e18286ca9a3d1956744 # v3.6.0
         with:
           fetch-depth: 1
 
       - name: Restore node_modules cache
-        uses: actions/cache@v3
+        uses: actions/cache@704facf57e6136b1bc63b828d79edcd491f0ee84 # v3.3.2
         with:
           path: ~/.npm
           key: ${{ runner.os }}-node-${{ hashFiles('**/package-lock.json') }}
diff --git a/.github/workflows/codeql.yml b/.github/workflows/codeql.yml
new file mode 100644
index 00000000..0877eb6d
--- /dev/null
+++ b/.github/workflows/codeql.yml
@@ -0,0 +1,73 @@
+# For most projects, this workflow file will not need changing; you simply need
+# to commit it to your repository.
+#
+# You may wish to alter this file to override the set of languages analyzed,
+# or to provide custom queries or build logic.
+#
+# ******** NOTE ********
+# We have attempted to detect the languages in your repository. Please check
+# the `language` matrix defined below to confirm you have the correct set of
+# supported CodeQL languages.
+#
+name: "CodeQL"
+
+on:
+  push:
+    branches: ["main"]
+  pull_request:
+    # The branches below must be a subset of the branches above
+    branches: ["main"]
+  schedule:
+    - cron: "0 0 * * 1"
+
+permissions:
+  contents: read
+
+jobs:
+  analyze:
+    name: Analyze
+    runs-on: ubuntu-latest
+    permissions:
+      actions: read
+      contents: read
+      security-events: write
+
+    strategy:
+      fail-fast: false
+      matrix:
+        language: ["javascript", "python", "typescript"]
+        # CodeQL supports [ $supported-codeql-languages ]
+        # Learn more about CodeQL language support at https://aka.ms/codeql-docs/language-support
+
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@f43a0e5ff2bd294095638e18286ca9a3d1956744 # v3.6.0
+
+      # Initializes the CodeQL tools for scanning.
+      - name: Initialize CodeQL
+        uses: github/codeql-action/init@fdcae64e1484d349b3366718cdfef3d404390e85 # v2.22.1
+        with:
+          languages: ${{ matrix.language }}
+          # If you wish to specify custom queries, you can do so here or in a config file.
+          # By default, queries listed here will override any specified in a config file.
+          # Prefix the list here with "+" to use these queries and those in the config file.
+
+      # Autobuild attempts to build any compiled languages  (C/C++, C#, or Java).
+      # If this step fails, then you should remove it and run the build manually (see below)
+      - name: Autobuild
+        uses: github/codeql-action/autobuild@fdcae64e1484d349b3366718cdfef3d404390e85 # v2.22.1
+
+      # ℹ️ Command-line programs to run using the OS shell.
+      # 📚 See https://docs.github.com/en/actions/using-workflows/workflow-syntax-for-github-actions#jobsjob_idstepsrun
+
+      #   If the Autobuild fails above, remove it and uncomment the following three lines.
+      #   modify them (or add more) to build your code if your project, please refer to the EXAMPLE below for guidance.
+
+      # - run: |
+      #   echo "Run, Build Application using script"
+      #   ./location_of_script_within_repo/buildscript.sh
+
+      - name: Perform CodeQL Analysis
+        uses: github/codeql-action/analyze@fdcae64e1484d349b3366718cdfef3d404390e85 # v2.22.1
+        with:
+          category: "/language:${{matrix.language}}"
diff --git a/.github/workflows/scorecards.yml b/.github/workflows/scorecards.yml
new file mode 100644
index 00000000..b88abbb9
--- /dev/null
+++ b/.github/workflows/scorecards.yml
@@ -0,0 +1,71 @@
+# This workflow uses actions that are not certified by GitHub. They are provided
+# by a third-party and are governed by separate terms of service, privacy
+# policy, and support documentation.
+
+name: Scorecard supply-chain security
+on:
+  # For Branch-Protection check. Only the default branch is supported. See
+  # https://github.com/ossf/scorecard/blob/main/docs/checks.md#branch-protection
+  branch_protection_rule:
+  # To guarantee Maintained check is occasionally updated. See
+  # https://github.com/ossf/scorecard/blob/main/docs/checks.md#maintained
+  schedule:
+    - cron: '20 7 * * 2'
+  push:
+    branches: ["main"]
+
+# Declare default permissions as read only.
+permissions: read-all
+
+jobs:
+  analysis:
+    name: Scorecard analysis
+    runs-on: ubuntu-latest
+    permissions:
+      # Needed to upload the results to code-scanning dashboard.
+      security-events: write
+      # Needed to publish results and get a badge (see publish_results below).
+      id-token: write
+      contents: read
+      actions: read
+
+    steps:
+      - name: "Checkout code"
+        uses: actions/checkout@f43a0e5ff2bd294095638e18286ca9a3d1956744 # v3.6.0
+        with:
+          persist-credentials: false
+
+      - name: "Run analysis"
+        uses: ossf/scorecard-action@99c53751e09b9529366343771cc321ec74e9bd3d # v2.0.6
+        with:
+          results_file: results.sarif
+          results_format: sarif
+          # (Optional) "write" PAT token. Uncomment the `repo_token` line below if:
+          # - you want to enable the Branch-Protection check on a *public* repository, or
+          # - you are installing Scorecards on a *private* repository
+          # To create the PAT, follow the steps in https://github.com/ossf/scorecard-action#authentication-with-pat.
+          # repo_token: ${{ secrets.SCORECARD_TOKEN }}
+
+          # Public repositories:
+          #   - Publish results to OpenSSF REST API for easy access by consumers
+          #   - Allows the repository to include the Scorecard badge.
+          #   - See https://github.com/ossf/scorecard-action#publishing-results.
+          # For private repositories:
+          #   - `publish_results` will always be set to `false`, regardless
+          #     of the value entered here.
+          publish_results: true
+
+      # Upload the results as artifacts (optional). Commenting out will disable uploads of run results in SARIF
+      # format to the repository Actions tab.
+      - name: "Upload artifact"
+        uses: actions/upload-artifact@a8a3f3ad30e3422c9c7b888a15615d19a852ae32 # v3.1.3
+        with:
+          name: SARIF file
+          path: results.sarif
+          retention-days: 5
+
+      # Upload the results to GitHub's code scanning dashboard.
+      - name: "Upload to code-scanning"
+        uses: github/codeql-action/upload-sarif@fdcae64e1484d349b3366718cdfef3d404390e85 # v2.22.1
+        with:
+          sarif_file: results.sarif
diff --git a/Dockerfile b/Dockerfile
index 2b5bfae1..4d83952c 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,4 +1,4 @@
-FROM node:18-alpine
+FROM node:18-alpine@sha256:a315556d82ef54561e54fca7d8ee333382de183d4e56841dcefcd05b55310f46
 ARG UID=1000
 ARG GID=1000