diff --git a/CHANGELOG.md b/CHANGELOG.md
index 3f87a977d5..e4c76415d9 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,9 @@
 # Changelog
 
+## [Unreleased]
+
+- No changes yet.
+
 ## [v1.39.0] - 2024-08-27
 
 - Fix git input handling of relative HEAD refs without branch names.
@@ -1228,6 +1232,7 @@ buf check breaking proto --against .git#branch=master,subdir=proto
 
 Initial beta release.
 
+[Unreleased]: https://github.com/bufbuild/buf/compare/v1.39.0...HEAD
 [v1.39.0]: https://github.com/bufbuild/buf/compare/v1.38.0...v1.39.0
 [v1.38.0]: https://github.com/bufbuild/buf/compare/v1.37.0...v1.38.0
 [v1.37.0]: https://github.com/bufbuild/buf/compare/v1.36.0...v1.37.0
diff --git a/private/buf/bufcli/bufcli.go b/private/buf/bufcli/bufcli.go
index 290ebb0163..682cee7b22 100644
--- a/private/buf/bufcli/bufcli.go
+++ b/private/buf/bufcli/bufcli.go
@@ -15,4 +15,4 @@
 package bufcli
 
 // Version is the CLI version of buf.
-const Version = "1.39.0"
+const Version = "1.39.1-dev"