diff --git a/.config b/.config
index a56653a..d729171 100644
--- a/.config
+++ b/.config
@@ -1,3 +1,4 @@
 repo-owner = sanctuary-js
 repo-name = sanctuary-int
+default-branch = main
 contributing-file = .github/CONTRIBUTING.md
diff --git a/.github/CONTRIBUTING.md b/.github/CONTRIBUTING.md
index dd7edee..e22d931 100644
--- a/.github/CONTRIBUTING.md
+++ b/.github/CONTRIBUTING.md
@@ -3,10 +3,10 @@
 Note: __README.md__ is generated from comments in __index.js__. Do not modify
 __README.md__ directly.
 
-1.  Update local master branch:
+1.  Update local main branch:
 
-        $ git checkout master
-        $ git pull upstream master
+        $ git checkout main
+        $ git pull upstream main
 
 2.  Create feature branch: