diff --git a/CHANGELOG.md b/CHANGELOG.md
index d11982dd..f2035cb8 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -65,6 +65,7 @@
 - docs: add note on accessory power functionality can prevent car sleep (#4737 - @darox)
 - docs: clarify pricing for Teslemetry (#4705 - @Bre77)
 - docs: add NixOS installation guide (#4768 - @JakobLichterfeld)
+- doc: add OpenSSF scorecard (#4819 - @JakobLichterfeld)
 
 ## [2.0.0] - 2025-04-26
 
diff --git a/README.md b/README.md
index cf3ffee9..3efc2dc8 100644
--- a/README.md
+++ b/README.md
@@ -1,5 +1,6 @@
 # TeslaMate
 
+[![OpenSSF Best Practices](https://www.bestpractices.dev/projects/10859/badge)](https://www.bestpractices.dev/projects/10859)
 [![CI](https://github.com/teslamate-org/teslamate/actions/workflows/devops.yml/badge.svg)](https://github.com/teslamate-org/teslamate/actions/workflows/devops.yml)
 [![Publish Docker images](https://github.com/teslamate-org/teslamate/actions/workflows/buildx.yml/badge.svg)](https://github.com/teslamate-org/teslamate/actions/workflows/buildx.yml)
 [![Coverage](https://coveralls.io/repos/github/teslamate-org/teslamate/badge.svg?branch=main)](https://coveralls.io/github/teslamate-org/teslamate?branch=main)