diff --git a/CHANGELOG.md b/CHANGELOG.md
index 210718d..5784e48 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,3 +1,9 @@
+## v0.5.1 (2025-05-27)
+
+### Fix
+
+- **deps**: update dependency fastmcp to v2
+
 ## v0.5.0 (2025-05-27)
 
 ### Feat
diff --git a/pyproject.toml b/pyproject.toml
index da1cfab..bee7cfe 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -4,7 +4,7 @@ build-backend = "poetry.core.masonry.api"
 
 [tool.poetry]
 name = "pypi-query-mcp-server"
-version = "0.5.0"
+version = "0.5.1"
 description = "A Model Context Protocol (MCP) server for querying PyPI package information, dependencies, and compatibility"
 authors = ["Hal <hal.long@outlook.com>"]
 readme = "README.md"