diff --git a/claude-agent-sdk/pyproject.toml b/claude-agent-sdk/pyproject.toml
index 1afa983..aba034b 100644
--- a/claude-agent-sdk/pyproject.toml
+++ b/claude-agent-sdk/pyproject.toml
@@ -18,7 +18,7 @@ test = [
 ]
 dev = [
     "bolt-python-support-agent-claude[test]",
-    "ruff==0.15.21",
+    "ruff==0.16.0",
 ]
 
 [tool.setuptools.packages.find]
diff --git a/claude-agent-sdk/requirements.txt b/claude-agent-sdk/requirements.txt
index 5617e2d..5f8c84f 100644
--- a/claude-agent-sdk/requirements.txt
+++ b/claude-agent-sdk/requirements.txt
@@ -7,4 +7,4 @@ python-dotenv==1.2.2
 
 pytest==9.1.1
 pytest-asyncio==1.4.0
-ruff==0.15.21
+ruff==0.16.0