diff --git a/aieng-agents/pyproject.toml b/aieng-agents/pyproject.toml
index 01d599a..380bae6 100644
--- a/aieng-agents/pyproject.toml
+++ b/aieng-agents/pyproject.toml
@@ -45,7 +45,7 @@ gradio = [
     "gradio>=6.12.0",
 ]
 observability = [
-    "langfuse>=4.3.1",
+    "langfuse>=4.13.0",
     "pydantic-ai-slim[logfire]>=2.3.0",
 ]
 all = [
diff --git a/uv.lock b/uv.lock
index 70c4c41..c7004a8 100644
--- a/uv.lock
+++ b/uv.lock
@@ -186,7 +186,7 @@ requires-dist = [
     { name = "google-genai", marker = "extra == 'gemini-proxy'", specifier = ">=1.73.1" },
     { name = "gradio", marker = "extra == 'gradio'", specifier = ">=6.12.0" },
     { name = "httpx", specifier = ">=0.28.1" },
-    { name = "langfuse", marker = "extra == 'observability'", specifier = ">=4.3.1" },
+    { name = "langfuse", marker = "extra == 'observability'", specifier = ">=4.13.0" },
     { name = "lxml", marker = "extra == 'news'", specifier = ">=6.1.0" },
     { name = "nest-asyncio", specifier = ">=1.6.0" },
     { name = "openai", specifier = ">=2.6.0" },
@@ -2057,7 +2057,7 @@ wheels = [
 
 [[package]]
 name = "langfuse"
-version = "4.12.0"
+version = "4.13.0"
 source = { registry = "https://pypi.org/simple" }
 dependencies = [
     { name = "backoff" },
@@ -2069,9 +2069,9 @@ dependencies = [
     { name = "pydantic" },
     { name = "wrapt" },
 ]
-sdist = { url = "https://files.pythonhosted.org/packages/c9/ba/3a969cad28bcef7f42e0fd052df4cf54004268a3a405108e3e2e03055678/langfuse-4.12.0.tar.gz", hash = "sha256:af4c12ae61f69726e0ac73d14a4ada1a119013d5558598828d382f2a238d7314", size = 348143, upload-time = "2026-06-25T11:57:12.269Z" }
+sdist = { url = "https://files.pythonhosted.org/packages/52/0c/a830958f9377e31114e8cbe74395a0adc515afaa3d02d8be5372d39e549c/langfuse-4.13.0.tar.gz", hash = "sha256:41b6b13e1e4e96f903a24e2bb69a38b83a8a296d12de11a345e33ec2763f10d2", size = 350477, upload-time = "2026-07-02T14:33:41.764Z" }
 wheels = [
-    { url = "https://files.pythonhosted.org/packages/bc/f3/da8f6972566cfb9eb701a0d6a48668ab3e5ba6ae4ffeabb85e24a10e02ac/langfuse-4.12.0-py3-none-any.whl", hash = "sha256:55f6231d1e64dc6e9debe776cb3f06eb93ca7afb51322ce54571fa7493ac05c9", size = 609201, upload-time = "2026-06-25T11:57:10.497Z" },
+    { url = "https://files.pythonhosted.org/packages/2f/5c/87ddf37cfeb43332e84f173fe8ef64ff6ce8ed6defcbef3fa0c63f545393/langfuse-4.13.0-py3-none-any.whl", hash = "sha256:0e0c5af8c8f299d6878c328518ce8414a188d1f6333ad2109aa8208f2e41500a", size = 611573, upload-time = "2026-07-02T14:33:40.143Z" },
 ]
 
 [[package]]