diff --git a/CHANGELOG.md b/CHANGELOG.md
index 8250a32a..4f674a65 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,17 @@
 # Changelog
 
+## 0.1.13
+
+### Bug Fixes
+
+- **Faster error handling**: CLI errors (e.g., invalid session ID) now propagate to pending requests immediately instead of waiting for the 60-second timeout (#388)
+- **Pydantic 2.12+ compatibility**: Fixed `PydanticUserError` caused by `McpServer` type only being imported under `TYPE_CHECKING` (#385)
+- **Concurrent subagent writes**: Added write lock to prevent `BusyResourceError` when multiple subagents invoke MCP tools in parallel (#391)
+
+### Internal/Other Changes
+
+- Updated bundled Claude CLI to version 2.0.59
+
 ## 0.1.12
 
 ### New Features
diff --git a/pyproject.toml b/pyproject.toml
index f2313384..be5afb66 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -4,7 +4,7 @@ build-backend = "hatchling.build"
 
 [project]
 name = "claude-agent-sdk"
-version = "0.1.12"
+version = "0.1.13"
 description = "Python SDK for Claude Code"
 readme = "README.md"
 requires-python = ">=3.10"
diff --git a/src/claude_agent_sdk/_version.py b/src/claude_agent_sdk/_version.py
index 4acf6225..782d1c6b 100644
--- a/src/claude_agent_sdk/_version.py
+++ b/src/claude_agent_sdk/_version.py
@@ -1,3 +1,3 @@
 """Version information for claude-agent-sdk."""
 
-__version__ = "0.1.12"
+__version__ = "0.1.13"