diff --git a/README.md b/README.md
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--- a/README.md
+++ b/README.md
@@ -28,7 +28,7 @@ https://www.transifex.com/projects/p/signal-android/
 
 ## Contributing Code
 
-If you're new to the Signal codebase, we recommend going through our issues and picking out a simple bug to fix (check the "easy" label in our issues) in order to get yourself familiar. Also please have a look at the [CONTRIBUTING.md](https://github.com/signalapp/Signal-Android/blob/master/CONTRIBUTING.md), that might answer some of your questions.
+If you're new to the Signal codebase, we recommend going through our issues and picking out a simple bug to fix (check the "easy" label in our issues) in order to get yourself familiar. Also please have a look at the [CONTRIBUTING.md](https://github.com/signalapp/Signal-Android/blob/main/CONTRIBUTING.md), that might answer some of your questions.
 
 For larger changes and feature ideas, we ask that you propose it on the [unofficial Community Forum](https://community.signalusers.org) for a high-level discussion with the wider community before implementation.