diff --git a/.github/workflows/codeql.yml b/.github/workflows/codeql.yml
new file mode 100644
index 00000000..a991f4d9
--- /dev/null
+++ b/.github/workflows/codeql.yml
@@ -0,0 +1,36 @@
+name: "CodeQL"
+
+on:
+  push:
+  pull_request:
+
+jobs:
+  analyze:
+    name: Analyze
+    runs-on: ubuntu-latest
+    permissions:
+      actions: read
+      contents: read
+      security-events: write
+
+    strategy:
+      fail-fast: false
+      matrix:
+        language: [ 'python' ]
+
+    steps:
+    - name: Checkout repository
+      uses: actions/checkout@v3
+
+    - name: Initialize CodeQL
+      uses: github/codeql-action/init@v2
+      with:
+        languages: ${{ matrix.language }}
+
+    - name: Autobuild
+      uses: github/codeql-action/autobuild@v2
+
+    - name: Perform CodeQL Analysis
+      uses: github/codeql-action/analyze@v2
+      with:
+        category: "/language:${{matrix.language}}"
diff --git a/README.md b/README.md
index 225d8128..ca971c3c 100644
--- a/README.md
+++ b/README.md
@@ -1,9 +1,9 @@
-[![flake8](https://github.com/fjosw/pyerrors/actions/workflows/flake8.yml/badge.svg)](https://github.com/fjosw/pyerrors/actions/workflows/flake8.yml) [![pytest](https://github.com/fjosw/pyerrors/actions/workflows/pytest.yml/badge.svg)](https://github.com/fjosw/pyerrors/actions/workflows/pytest.yml) [![](https://img.shields.io/badge/python-3.7+-blue.svg)](https://www.python.org/downloads/) [![License: MIT](https://img.shields.io/badge/License-MIT-yellow.svg)](https://opensource.org/licenses/MIT) [![Binder](https://mybinder.org/badge_logo.svg)](https://mybinder.org/v2/gh/fjosw/pyerrors/HEAD?labpath=examples)
+[![flake8](https://github.com/fjosw/pyerrors/actions/workflows/flake8.yml/badge.svg)](https://github.com/fjosw/pyerrors/actions/workflows/flake8.yml) [![pytest](https://github.com/fjosw/pyerrors/actions/workflows/pytest.yml/badge.svg)](https://github.com/fjosw/pyerrors/actions/workflows/pytest.yml) [![](https://img.shields.io/badge/python-3.7+-blue.svg)](https://www.python.org/downloads/) [![License: MIT](https://img.shields.io/badge/License-MIT-yellow.svg)](https://opensource.org/licenses/MIT)
 # pyerrors
 `pyerrors` is a python package for error computation and propagation of Markov chain Monte Carlo data.
 
 - **Documentation:** https://fjosw.github.io/pyerrors/pyerrors.html
-- **Examples**: https://github.com/fjosw/pyerrors/tree/develop/examples
+- **Examples:** https://github.com/fjosw/pyerrors/tree/develop/examples
 - **Contributing:** https://github.com/fjosw/pyerrors/blob/develop/CONTRIBUTING.md
 - **Bug reports:** https://github.com/fjosw/pyerrors/issues