diff --git a/CHANGELOG.md b/CHANGELOG.md
index 32319d9..ba39586 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -2,6 +2,29 @@
 
 <!-- version list -->
 
+## v5.12.1 (2025-10-01)
+
+### Bug Fixes
+
+- Resolve consensus tool model_context parameter missing issue
+  ([`9044b63`](https://github.com/BeehiveInnovations/zen-mcp-server/commit/9044b63809113047fe678d659e4fcd175f58e87a))
+
+### Chores
+
+- Sync version to config.py [skip ci]
+  ([`e3ebf4e`](https://github.com/BeehiveInnovations/zen-mcp-server/commit/e3ebf4e94eba63acdc4df5a0b0493e44e3343dd1))
+
+### Code Style
+
+- Fix trailing whitespace in consensus.py
+  ([`0760b31`](https://github.com/BeehiveInnovations/zen-mcp-server/commit/0760b31f8a6d03c4bea3fd2a94dfbbfab0ad5079))
+
+### Refactoring
+
+- Optimize ModelContext creation in consensus tool
+  ([`30a8952`](https://github.com/BeehiveInnovations/zen-mcp-server/commit/30a8952fbccd22bebebd14eb2c8005404b79bcd6))
+
+
 ## v5.12.0 (2025-10-01)
 
 ### Bug Fixes
diff --git a/config.py b/config.py
index 1630a99..319b8c0 100644
--- a/config.py
+++ b/config.py
@@ -14,7 +14,7 @@ import os
 # These values are used in server responses and for tracking releases
 # IMPORTANT: This is the single source of truth for version and author info
 # Semantic versioning: MAJOR.MINOR.PATCH
-__version__ = "5.12.0"
+__version__ = "5.12.1"
 # Last update date in ISO format
 __updated__ = "2025-10-01"
 # Primary maintainer
diff --git a/pyproject.toml b/pyproject.toml
index b6745e5..671be1a 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -1,6 +1,6 @@
 [project]
 name = "zen-mcp-server"
-version = "5.12.0"
+version = "5.12.1"
 description = "AI-powered MCP server with multiple model providers"
 requires-python = ">=3.9"
 dependencies = [