diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 92249fd..49b86a8 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -2,9 +2,9 @@ name: CI
 
 on:
   push:
-    branches: [ master ]
+    branches: [ main ]
   pull_request:
-    branches: [ master ]
+    branches: [ main ]
   schedule:
     - cron: '0 19 * * 3'
 
diff --git a/Cargo.toml b/Cargo.toml
index 871c8b8..8fa74c6 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -36,7 +36,7 @@ include = [
 ]
 
 [badges]
-codecov = { repository = "orium/rpds", branch = "master", service = "github" }
+codecov = { repository = "orium/rpds", branch = "main", service = "github" }
 
 [dependencies]
 archery = "1.0.0"
diff --git a/README.md b/README.md
index 551aced..dcf3abb 100644
--- a/README.md
+++ b/README.md
@@ -1,5 +1,5 @@
 [![Build Status](https://github.com/orium/rpds/workflows/CI/badge.svg)](https://github.com/orium/rpds/actions?query=workflow%3ACI)
-[![Code Coverage](https://codecov.io/gh/orium/rpds/branch/master/graph/badge.svg)](https://codecov.io/gh/orium/rpds)
+[![Code Coverage](https://codecov.io/gh/orium/rpds/branch/main/graph/badge.svg)](https://codecov.io/gh/orium/rpds)
 [![Dependency status](https://deps.rs/repo/github/orium/rpds/status.svg)](https://deps.rs/repo/github/orium/rpds)
 [![crates.io](https://img.shields.io/crates/v/rpds.svg)](https://crates.io/crates/rpds)
 [![Downloads](https://img.shields.io/crates/d/rpds.svg)](https://crates.io/crates/rpds)
diff --git a/tools/release.sh b/tools/release.sh
index ffba4c3..0932b4d 100755
--- a/tools/release.sh
+++ b/tools/release.sh
@@ -6,7 +6,7 @@
 
 set -e
 
-MAIN_BRANCH=master
+MAIN_BRANCH=main
 
 cd $(dirname "$0")
 cd "$(git rev-parse --show-toplevel)"