diff --git a/.release-please-manifest.json b/.release-please-manifest.json
index 8b4f3926..bc5269be 100644
--- a/.release-please-manifest.json
+++ b/.release-please-manifest.json
@@ -1,3 +1,3 @@
 {
-  ".": "6.1.0-beta.2"
+  ".": "6.1.1-beta.2"
 }
diff --git a/CHANGELOG.md b/CHANGELOG.md
index ef9d8ab1..1e52a35c 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,13 @@
 # Changelog
 
+## [6.1.1-beta.2](https://github.com/adcontextprotocol/adcp-client-python/compare/v6.1.0-beta.2...v6.1.1-beta.2) (2026-05-25)
+
+
+### Bug Fixes
+
+* **codegen:** preserve regenerated response aliases ([#854](https://github.com/adcontextprotocol/adcp-client-python/issues/854)) ([56d65fd](https://github.com/adcontextprotocol/adcp-client-python/commit/56d65fd1187a90ed9128a691a359e862eea00e13))
+* seller SDK version compatibility ([#852](https://github.com/adcontextprotocol/adcp-client-python/issues/852)) ([e4b716d](https://github.com/adcontextprotocol/adcp-client-python/commit/e4b716d05462eabf49262222376e8ad7d95198c1))
+
 ## [6.1.0-beta.2](https://github.com/adcontextprotocol/adcp-client-python/compare/v6.1.0-beta.1...v6.1.0-beta.2) (2026-05-24)
 
 
diff --git a/pyproject.toml b/pyproject.toml
index 6e10cdc8..dde28b46 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -4,7 +4,7 @@ build-backend = "setuptools.build_meta"
 
 [project]
 name = "adcp"
-version = "6.1.0b2"
+version = "6.1.1b2"
 description = "Official Python client for the Ad Context Protocol (AdCP)"
 authors = [
     {name = "AdCP Community", email = "maintainers@adcontextprotocol.org"}