diff --git a/pydantic-ai/pyproject.toml b/pydantic-ai/pyproject.toml
index b9c6316..f84da8d 100644
--- a/pydantic-ai/pyproject.toml
+++ b/pydantic-ai/pyproject.toml
@@ -4,7 +4,7 @@ version = "0.1.0"
 requires-python = ">=3.11"
 dependencies = [
     "aiohttp==3.14.5",
-    "pydantic-ai-slim[anthropic,openai]==2.55.0",
+    "pydantic-ai-slim[anthropic,openai]==2.56.0",
     "python-dotenv==1.2.4",
     "slack-bolt==1.30.0",
     "slack-cli-hooks==0.3.0",