diff --git a/README.rst b/README.rst
index bc087d3..5b40da1 100644
--- a/README.rst
+++ b/README.rst
@@ -19,7 +19,7 @@ blurb
 Interactive utility for writing CPython ``Misc/NEWS.d`` entries. See
 the blurb_ directory for more details.
 
-.. _blurb: https://github.com/python/core-workflow/tree/master/blurb
+.. _blurb: https://github.com/python/core-workflow/tree/main/blurb
 
 
 Other core workflow tools
diff --git a/blurb/pyproject.toml b/blurb/pyproject.toml
index e5398ee..5181a1f 100644
--- a/blurb/pyproject.toml
+++ b/blurb/pyproject.toml
@@ -8,7 +8,7 @@ author = "Larry Hastings"
 author-email = "larry@hastings.org"
 maintainer = "Python Core Developers"
 maintainer-email = "core-workflow@mail.python.org"
-home-page = "https://github.com/python/core-workflow/tree/master/blurb"
+home-page = "https://github.com/python/core-workflow/tree/main/blurb"
 requires-python = ">=3.7"
 description-file = "README.rst"
 classifiers = [