diff --git a/aieng-agents/pyproject.toml b/aieng-agents/pyproject.toml
index 65dce2a..57f8f4d 100644
--- a/aieng-agents/pyproject.toml
+++ b/aieng-agents/pyproject.toml
@@ -46,7 +46,7 @@ gradio = [
 ]
 observability = [
     "langfuse>=4.14.3",
-    "pydantic-ai-slim[logfire]>=2.30.0",
+    "pydantic-ai-slim[logfire]>=2.31.0",
 ]
 all = [
     "aieng-agents[data,weaviate,code-interpreter,gemini-proxy,news,gradio,observability]",
diff --git a/uv.lock b/uv.lock
index a8585f3..165e003 100644
--- a/uv.lock
+++ b/uv.lock
@@ -194,7 +194,7 @@ requires-dist = [
     { name = "openai-agents", specifier = ">=0.20.0" },
     { name = "pandas", marker = "extra == 'data'", specifier = ">=3.0.5" },
     { name = "pydantic", specifier = ">=2.11.7" },
-    { name = "pydantic-ai-slim", extras = ["logfire"], marker = "extra == 'observability'", specifier = ">=2.30.0" },
+    { name = "pydantic-ai-slim", extras = ["logfire"], marker = "extra == 'observability'", specifier = ">=2.31.0" },
     { name = "pydantic-settings", specifier = ">=2.15.0" },
     { name = "pymupdf", marker = "extra == 'data'", specifier = ">=1.28.2" },
     { name = "python-dotenv", marker = "extra == 'data'", specifier = ">=1.2.2" },
@@ -3788,7 +3788,7 @@ wheels = [
 
 [[package]]
 name = "pydantic-ai-slim"
-version = "2.30.0"
+version = "2.31.0"
 source = { registry = "https://pypi.org/simple" }
 dependencies = [
     { name = "anyio" },
@@ -3800,9 +3800,9 @@ dependencies = [
     { name = "pydantic-graph" },
     { name = "typing-inspection" },
 ]
-sdist = { url = "https://files.pythonhosted.org/packages/6b/79/3f171b7e52d01d214110d4aca35376f05507f7ac3db87461ae5bb1eb4baa/pydantic_ai_slim-2.30.0.tar.gz", hash = "sha256:d7619f28f11b5a035047229bbdf67047fc755c27b01be5d6f36672be117625b7", size = 1212033, upload-time = "2026-08-14T03:17:03.521Z" }
+sdist = { url = "https://files.pythonhosted.org/packages/e7/4e/2165d9b90edcd5dfc8e9465b3bdc0aa66a67760843ddb0ac99ee396898f0/pydantic_ai_slim-2.31.0.tar.gz", hash = "sha256:a9310d2464154b028096f1d680f17837f16e5c6cd209b4542e4f60ca5d344789", size = 1214087, upload-time = "2026-08-15T03:17:28.353Z" }
 wheels = [
-    { url = "https://files.pythonhosted.org/packages/8c/7e/ef2eb753013b0f128a0d1f2aa8e9fd17ab1d918cd7bb0897829a64117242/pydantic_ai_slim-2.30.0-py3-none-any.whl", hash = "sha256:0125bd525f0ff24127ff62c9da9b7a530b58110ce5c84fc8a1dce5c35e7565bd", size = 1429302, upload-time = "2026-08-14T03:16:56.267Z" },
+    { url = "https://files.pythonhosted.org/packages/db/09/233e529fadbece38580c3a390783f55fa196afad875ce535ee9a57a5ad71/pydantic_ai_slim-2.31.0-py3-none-any.whl", hash = "sha256:cb809ad949ca68be6bb9a0e0b994fc73a95f4cd405e8609a71034f2e2080e2a1", size = 1432053, upload-time = "2026-08-15T03:17:21.208Z" },
 ]
 
 [package.optional-dependencies]
@@ -3887,7 +3887,7 @@ wheels = [
 
 [[package]]
 name = "pydantic-graph"
-version = "2.30.0"
+version = "2.31.0"
 source = { registry = "https://pypi.org/simple" }
 dependencies = [
     { name = "anyio" },
@@ -3896,9 +3896,9 @@ dependencies = [
     { name = "pydantic" },
     { name = "typing-inspection" },
 ]
-sdist = { url = "https://files.pythonhosted.org/packages/c3/b8/557b040138ae5d5fdf8afec655e0e9cc0493ed674221dd301e0466245053/pydantic_graph-2.30.0.tar.gz", hash = "sha256:9bf43c1e2785598399b4679a2837173c0e3018c8167d86c2f99713685e4ba845", size = 45177, upload-time = "2026-08-14T03:17:05.894Z" }
+sdist = { url = "https://files.pythonhosted.org/packages/8a/2c/3817ae318ecc729a258fc85aaad84fc110b9467a292b98bb10e65ae71183/pydantic_graph-2.31.0.tar.gz", hash = "sha256:a19919408dfaa5a1b8713618bcce7a5135d83664321862b0d9be1f4216c432ef", size = 45180, upload-time = "2026-08-15T03:17:30.398Z" }
 wheels = [
-    { url = "https://files.pythonhosted.org/packages/a2/76/7afc039ff5e34a08c6acc862818e1a7ee389862c892fcfb49b4e4c0d1d50/pydantic_graph-2.30.0-py3-none-any.whl", hash = "sha256:8282c1091fc03f2d4f40e83ab7ca09e3c117df6b645bbd6cd433561a8064e361", size = 52661, upload-time = "2026-08-14T03:16:59.508Z" },
+    { url = "https://files.pythonhosted.org/packages/54/ef/a3217caed3189cfcc6857316e06cb900990e4d5cb59e42ec517cfdda6a7f/pydantic_graph-2.31.0-py3-none-any.whl", hash = "sha256:062555c89b1d5699ddaaa6f09ae62fc1d0f5cc189d0867e2fafca68c24797ba5", size = 52662, upload-time = "2026-08-15T03:17:24.42Z" },
 ]
 
 [[package]]