diff --git a/claude-agent-sdk/requirements.txt b/claude-agent-sdk/requirements.txt
index b533ed1..bb66ad7 100644
--- a/claude-agent-sdk/requirements.txt
+++ b/claude-agent-sdk/requirements.txt
@@ -6,4 +6,4 @@ aiohttp>=3.13.3
 python-dotenv==1.2.1
 
 pytest
-ruff==0.15.2
+ruff==0.15.4
diff --git a/openai-agents-sdk/requirements.txt b/openai-agents-sdk/requirements.txt
index 96a2074..4edc94c 100644
--- a/openai-agents-sdk/requirements.txt
+++ b/openai-agents-sdk/requirements.txt
@@ -5,4 +5,4 @@ openai-agents
 python-dotenv==1.2.1
 
 pytest
-ruff==0.15.2
+ruff==0.15.4
diff --git a/pydantic-ai/requirements.txt b/pydantic-ai/requirements.txt
index 570118f..bc5a3be 100644
--- a/pydantic-ai/requirements.txt
+++ b/pydantic-ai/requirements.txt
@@ -5,4 +5,4 @@ pydantic-ai[openai]
 python-dotenv==1.2.1
 
 pytest
-ruff==0.15.2
+ruff==0.15.4