diff --git a/.github/workflows/codeql-analysis.yml b/.github/workflows/codeql-analysis.yml
new file mode 100644
index 00000000..391aad58
--- /dev/null
+++ b/.github/workflows/codeql-analysis.yml
@@ -0,0 +1,67 @@
+# 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: [ master ]
+  pull_request:
+    # The branches below must be a subset of the branches above
+    branches: [ master ]
+  schedule:
+    - cron: '25 16 * * 0'
+
+jobs:
+  analyze:
+    name: Analyze
+    runs-on: ubuntu-latest
+
+    strategy:
+      fail-fast: false
+      matrix:
+        language: [ 'python' ]
+        # CodeQL supports [ 'cpp', 'csharp', 'go', 'java', 'javascript', 'python' ]
+        # Learn more:
+        # https://docs.github.com/en/free-pro-team@latest/github/finding-security-vulnerabilities-and-errors-in-your-code/configuring-code-scanning#changing-the-languages-that-are-analyzed
+
+    steps:
+    - name: Checkout repository
+      uses: actions/checkout@v2
+
+    # Initializes the CodeQL tools for scanning.
+    - name: Initialize CodeQL
+      uses: github/codeql-action/init@v1
+      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.
+        # queries: ./path/to/local/query, your-org/your-repo/queries@main
+
+    # 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@v1
+
+    # ℹ️ Command-line programs to run using the OS shell.
+    # 📚 https://git.io/JvXDl
+
+    # ✏️ If the Autobuild fails above, remove it and uncomment the following three lines
+    #    and modify them (or add more) to build your code if your project
+    #    uses a compiled language
+
+    #- run: |
+    #   make bootstrap
+    #   make release
+
+    - name: Perform CodeQL Analysis
+      uses: github/codeql-action/analyze@v1
diff --git a/SECURITY.md b/SECURITY.md
index 9b74e0c6..d49fce6f 100644
--- a/SECURITY.md
+++ b/SECURITY.md
@@ -6,14 +6,15 @@ Sanic releases long term support release once a year in December. LTS releases r
 
 | Version | LTS           | Supported          |
 | ------- | ------------- | ------------------ |
-| 20.9    |               | :heavy_check_mark: |
+| 20.12   | until 2022-12 | :heavy_check_mark: |
+| 20.9    |               | :x:                |
 | 20.6    |               | :x:                |
 | 20.3    |               | :x:                |
 | 19.12   | until 2021-12 | :white_check_mark: |
 | 19.9    |               | :x:                |
 | 19.6    |               | :x:                |
 | 19.3    |               | :x:                |
-| 18.12   | until 2020-12 | :white_check_mark: |
+| 18.12   |               | :x:                |
 | 0.8.3   |               | :x:                |
 | 0.7.0   |               | :x:                |
 | 0.6.0   |               | :x:                |